"Pink slime" is an epithet for a meat-based product the meat industry calls "lean finely textured beef" (LFTB), "finely textured beef", and "boneless lean beef trimmings" (BLBT). It was also derided as "soylent pink". In 2001, the United States Department of Agriculture (USDA) approved the product for limited human consumption, and it has been used as a food additive to ground beef and beef-based processed meats as a filler, at a ratio of usually no more than 25 percent of any product; but it is banned from sale for human consumption in the European Union. In the production process heat and centrifuges separate the fat from the meat in beef trimmings. The resulting product is exposed to ammonia gas or citric acid to kill bacteria.
In March 2012, an ABC News series about "pink slime" included claims that approximately 70 percent of ground beef sold in U.S. supermarkets contained the additive at that time, after which some companies and organizations stopped offering ground beef with the product. "Pink slime" was claimed by some originally to have been used as pet food and cooking oil and later approved for public consumption, but both the Food and Drug Administration (FDA) administrator responsible for approving the product and Beef Products, Inc., the largest U.S. producer, disputed this in April 2012. The U.S. manufacturer Beef Products Inc. BPI said in September 2012, it filed a lawsuit against American Broadcasting Company for false claims.
- 1 Product overview
- 2 Legal status in North America and the EU
- 3 History
- 4 2012 Controversy
- 5 Abstention and product divestment, April 2012 until present day
- 6 BPI lawsuit
- 7 In a 2011 TV series
- 8 See also
- 9 References
- 10 Further reading
- 11 External links
Lean finely textured beef, called by the epithet "pink slime", is a U.S. beef-based product that is added to ground beef as a filler or to reduce the overall fat content of ground beef. In March 2012 about 70 percent of ground beef sold in U.S. supermarkets contained the product. Source areas for the product from cattle may include the most contaminated portions, such as near the hide.
Rick Jochum, a spokesperson for BPI stated in 2012 that BPI's product does not contain cow intestines or connective tissue such as tendons. A USDA microbiologist opined, the product does contain connective tissue "instead of muscle" and thus it is "not meat" and is "not nutritionally equivalent" to ground beef. Fox news reported this dissent as: besides low-grade beef trimmings other meat by-products such as connective tissue, cartilage, and sinew which contain fat and small amounts of lean beef were present.
Finely textured meat is produced by heating boneless beef trimmings to 107–109 °F (41.7–42.7 °C), removing the melted fat by centrifugal force, and flash freezing the remaining product to 15 °F (−9.4 °C) in 90 seconds in a roller press freezer, although South Dakota Department of Agriculture has reported a lower processing temperature of about 100 °F (38 °C).
The recovered beef material is extruded through long tubes that are thinner than a pencil, during which time the meat is exposed to gaseous ammonia at BPI, or citric acid at Cargill, to kill bacteria like E. coli and Salmonella. Gaseous ammonia in contact with the water in the meat produces ammonium hydroxide. The anhydrous ammonia sharply increases the pH and damages microscopic organisms, the freezing causes ice crystals to form and puncture the organisms' weakened cell walls, and the mechanical stress destroys the organisms altogether. The product is finely ground, compressed into pellets or blocks, flash frozen and then shipped for use as an additive.
Per BPI, the finished product is 94 to 97 percent lean beef, has a nutritional value comparable to 90 percent lean ground beef, is very high in protein, low in fat, and contains iron, zinc and B vitamins.
In an Associated Press review, food editor and cookbook author J.M. Hirsh compared the taste of LFTB-containing hamburgers against traditional, or "real," hamburgers. He described the LFTB-containing burgers as smelling the same, but being less juicy and highly mealy with bits and studs of cartilage–like matter.
Most of the finely textured beef is produced and sold by BPI, Cargill Meat Solutions, and Tyson Foods. As of March 2012 there was no labeling of the product, and only a USDA Organic label would have indicated that beef contained no "pink slime."
Legal status in North America and the EU
In the United States, the additive itself cannot legally be sold directly to consumers. However, lean finely textured beef can constitute up to 15 percent of ground beef without additional labeling, and it can also be added to other meat products such as beef-based processed meats. Prior to the invention of the disinfection process, beef scraps could not be processed to reduce or remove the fat, bone fragments or other non-beef components and could be sold for other uses only, such as pet food or as an ingredient for cooking oil.
Because of ammonium hydroxide use in its processing, the lean finely textured beef by BFI is not permitted in Canada. Health Canada stated that: "Ammonia is not permitted in Canada to be used in ground beef or meats during their production" and may not be imported, as the Canadian Food and Drugs Act requires that imported meat products meet the same standards and requirements as domestic meat. But Canada does allow Cargill's citric acid produced Finely Textured Meat (FTM) to be "used in the preparation of ground meat" and "identified as ground meat" under certain conditions.
In 1990, the USDA's Food Safety and Inspection Service (FSIS) approved the use of the basic technology for manufacturing finely textured meat. At the time of its approval, the FSIS called the remaining product "meat", although one FSIS microbiologist dissented, arguing it contained both muscle and connective tissue.
In 1994, in response to public health concerns over pathogenic E. coli in beef, the founder of BPI, Eldon Roth, began work on the "pH Enhancement System," which disinfects meat using injected anhydrous ammonia in gaseous form, rapid freezing to 28 °F (−2.2 °C), and mechanical stress.
In 2001, the FSIS approved the gaseous disinfection system as an intermediate step before the roller press freezer, and approved the disinfected product for human consumption, as an additive. The FSIS agreed with BPI's suggestion that ammonia was a "processing agent" which did not need to be listed on labels as an ingredient. USDA FSIS microbiologists Carl Custer and Gerald Zirnstein stated that they argued against the product's approval for human consumption, saying that it was not "meat" but actually "salvage", and that the USDA should seek independent verification of its safety, but they were overruled. In 2003, BPI commissioned a study of the disinfection process's effectiveness and safety; the Iowa State University researchers found no safety concern in the product or in ground beef containing it.
The term "pink slime", a reference to the product's "distinctive look," was coined in 2002 by Zirnstein in an internal FSIS e-mail. Expressing concern that ammonia should be mentioned on the labels of packaged ground beef to which the treated trimmings are added, Zirnstein stated "I do not consider the stuff to be ground beef, and I consider allowing it in ground beef to be a form of fraudulent labeling." He later stated that his main concern was that connective tissue is not "meat", and that ground beef to which the product had been added should not be called ground beef, since it is not nutritionally equivalent to regular ground beef.
In 2007, the USDA determined the disinfection process was so effective, that it would be exempt from "routine testing of meat used in hamburger sold to the general public."
A December 2009 New York Times investigative piece questioned the safety of the meat treated by this process, pointing to occasions in which process adjustments were not effective. This article included the first public use of the term "pink slime" as a pejorative. In January 2010, The New York Times published an editorial reiterating the concerns posed in the news article while noting that no meat produced by BPI had been linked to any illnesses or outbreaks.
In April 2012, the United States Department of Agriculture (USDA) received requests from beef processors to allow voluntary labeling of products with the additive, and stated it plans to approve labeling after checks for label accuracy.
An 11 segment series of reports in March 2012 from ABC News brought widespread public attention to and raised consumer concerns about the product. The product was described as "essentially scrap meat pieces compressed together and treated with an antibacterial agent." LFTB was referred to as "an unappetizing example of industrialized food production." The product has been characterized as "...unappetizing, but perhaps not more so than other things that are routinely part of hamburger" by Sarah Klein, an attorney for the food safety program at the Center for Science in the Public Interest. Nutritionist Andy Bellatti has referred to the product as "...one of many symptoms of a broken food system." Food policy writer Tom Laskawy noted that the use of ammonium hydroxide is only one of several chemicals routinely added to industrially produced meat in the United States. The reaction against the product has also been partially credited to Bettina Siegel's Change.org petition that has landed over a quarter million signatures to ban it in school lunches.
The USDA issued a statement that LFTB was safe and had been included in consumer products for some time, and its Under Secretary of Agriculture for Food Safety Elisabeth A. Hagen stated that "The process used to produce LFTB is safe and has been used for a very long time. And adding LFTB to ground beef does not make that ground beef any less safe to consume."
Consumer concerns and grocery store reactions
The nature of the product and the manner in which it is processed led to concerns that it might be a risk to human health, despite the fact that there have been no reported cases of foodborne illnesses due to consumption of the product. Among consumers, media reporting significantly reduced its acceptance as an additive to ground beef. A Harris Interactive survey commissioned by Red Robin and released on April 4, 2012, found that 88 percent of U.S. adults were aware of the "pink slime" issue, and that of those who were aware, 76 percent indicated that they were "at least somewhat concerned," with 30 percent "extremely concerned." 53 percent of respondents who stated that they were aware of pink slime took some action, such as researching ground beef they purchase or consume, or decreasing or eliminating ground beef consumption. Some consumer advocacy groups pressed for its elimination or for mandatory disclosure of additives in beef, but a spokesperson from Beef Products Inc. at the time said there was no need for any additional labeling, asking "What should we label it? It's 100 percent beef, what do you want us to label it? I'm not prepared to say it's anything other than beef, because it's 100 percent beef."
Other consumer advocacy groups, notably the National Consumers League, expressed dismay at the popular reaction against the product, and especially the plant closures "because of business the company has lost to very serious misinformation, widely disseminated by the media, about its product, lean finely textured beef (LFTB)." Similarly, the Consumer Federation of America said the plant closures were "unfortunate" and expressed concern that the product might be replaced in ground beef with "something that has not been processed to assure the same level of safety." U.S. consumers have expressed concerns that ground beef which contains the product is not labeled as such, and that consumers are currently unable to make informed purchasing decisions due to this lack of product labeling. Senator Bob Menendez of New Jersey called upon the USDA to institute mandatory labeling guidelines for ground beef sold in supermarkets, so consumers can make informed purchasing decisions.
Many grocery stores and supermarkets, including the nation's three largest chains, announced that they would no longer sell products containing the additive. Some grocery companies, restaurants and school districts discontinued the sale and provision of beef containing the additive after the media reports.
Reactions by the meat industry
Manufacturer Beef Products Inc. (BPI) and meat industry organizations addressed public concerns by stating that the additive, though processed, is "lean beef" that simply was not able to be reclaimed through traditional slaughterhouse practices until newer technologies became available approximately 20 years ago. With regard to concerns over the use of ammonium hydroxide, BPI noted that its use as an anti-microbial agent is approved by the Food and Drug Administration. The use of ammonium hydroxide is included on the FDA's list of GRAS (generally recognized as safe) procedures, and is used in similar applications for numerous other food products, including puddings and baked goods. In April 2012 both BFI and Cargill made plans to label products that contain the additive to alleviate these concerns and restore consumer confidence.
Politician and media plant tour
Following the suspension of operations at three out of four BPI plants, members of the media and leaders were invited by Iowa Governor Terry Branstad to tour the BPI facility that remained open in South Sioux City, Nebraska. The founders of BPI gave campaign contributions to Branstad in 2010, and to other candidates' campaigns. Brandstad stated to ABC News that the contributions were not a factor in his decision regarding having the event. Texas Governor Rick Perry, Nebraska Lieutenant Governor Rick Sheehy, Kansas Governor Sam Brownback, and South Dakota Lieutenant Governor Matt Michels, toured the South Sioux City, Nebraska, plant in an attempt to allay "inaccurate information" that they stated as having caused "an unnecessary panic among consumers." The publicity tour emerged with the promotional slogan, "Dude, it's beef!" News reporters were not allowed to ask employees at BPI any questions during the tour. BPI asserts that social media and ABC News "grossly misrepresented" their product. BPI eventually sued ABC News for defamation.
On March 28, 2012, Branstad stated, "The problem is, we take this off the market, then we end up with a fatter product that’s going to cost more and it’s going to increase the obesity problem in this country." Safeway and other retailers that have removed the product from their shelves or product lines have stated they will not raise the price of their beef. Branstad also stated that he would recommend that Iowa state public schools continue to use ground beef which contains the product, and stated plans to "send a letter to the state's public schools, encouraging them to continue to buy LFTB."
Abstention and product divestment, April 2012 until present day
Several U.S. food manufacturers have publicly stated that they do not use the product in their products, including ConAgra Foods Inc., Sara Lee Corporation and Kraft Foods Inc. Many meat retailers stated that they either did not use the product, or would cease using it. Many fast food chains stopped use of the product after the controversy arose, or stated that they had not used the product before. One newspaper reported increased business in some small neighborhood markets in April 2012, due to consumer concerns about the additive.
After some parents and consumer advocates insisted the product be removed from public schools, the United States Department of Agriculture (USDA) indicated, beginning in fall 2012 it would give school districts the choice between ground beef with or without LFTB . CBS reported that Chicago Public schools may have served ‘Pink Slime’ in school lunches. On March 22, 2012, 41 Democrats in Congress, led by Representative Chellie Pingree of Maine, wrote a letter to United States Secretary of Agriculture Tom Vilsack, head of the USDA, that "creating a two-tiered school lunch program where kids in less affluent communities get served this low-grade slurry is wrong" and urged its elimination from all public-school lunches. Senator Jon Tester of Montana issued a news release in March 2012 urging Agriculture Secretary Vilsack to remove "pink slime" from school lunches and replace it with "high-quality Montana beef." Tester stated he planned to include provisions in the upcoming farm bill that would allow schools more flexibility in using USDA commodity dollars, to increase options in purchasing locally grown and produced foods.
While some school districts have their own suppliers, many school districts purchase beef directly from the USDA and do not know what is in the beef. For the year 2012, the USDA planned on purchasing 7 million pounds of lean beef trimmings for the U.S. national school lunch program. USDA spokesman Mike Jarvis stated that of the 117 million pounds of beef ordered nationally for the school lunch program last year, six percent was LFTB. An analysis of California Department of Education data indicated that "anywhere from none to nearly 3 million pounds of beef from the USDA that was served in California schools last year could have contained lean finely textured beef." According to the USDA, the cost differential between ground beef with and without the additive has been estimated at approximately 3%.
Following the USDA announcement to allow choices in purchasing decisions for ground beef, many school districts stated that they would opt out of serving ground beef with LFTB. By June 2012, forty-seven of fifty states declined to purchase any of the product for the 2012–2013 school year while South Dakota Department of Education, Nebraska, and Iowa chose to continue buying it.
Effect on meat production
On March 25, 2012, BPI announced it would suspend operations at three of its four plants, being in "crisis planning". The three plants produced a total of about 900,000 pounds of the product per day. BPI said it lost contracts with 72 customers, many over the course of one weekend and production decreased from 5 million pounds of LFTB per week to below one million pounds a week at the nadir. Effective May 25, 2012 BPI closed three of its four plants, including one in Garden City, Kansas, lost more than $400 million in sales, and laid off 700 workers. Production increased to less than 2 million in 2013.
Cargill also significantly cut production of finely textured beef and in April 2012 "warned [that] the public's resistance to the filler could lead to higher hamburger prices this barbecue season". About 80% of sales of the product evaporated "overnight" in 2012, per the president of Cargill Beef. Cargill stopped production in Vernon, California and laid off about 50 workers as well as slowing production at other plants including a beef-processing plant in Plainview, Texas, where about 2,000 people were laid off.
On April 2, 2012 AFA Foods, a ground-beef processor manufacturer of finely textured beef owned by Yucaipa Companies filed for Chapter 11 bankruptcy citing "ongoing media attention" that has "dramatically reduced the demand for all ground beef products."
On April 3, 2012, U.S. cattle futures on the Chicago Mercantile Exchange were at a 3.5-month low, which was partially attributed to the "pink slime" controversy. Livestock traders stated that: "It has put a dent in demand. It is bullish for live cattle over the long-term, but short-term it is certainly negative." In 2013, LFTB was in an estimated 5% of beef, according to industry officials.
With the 2014 grilling season Cargill started using a label “Contains Finely Textured Beef”.
In 2014, finely textured beef production increased modestly, as beef prices rose by 27% and "retailers seek cheaper trimmings to include in hamburger meat and processors find new products to put it in." BPI, which does not label its product, recovered 40 customers since March 2012.
On September 13, 2012, BPI announced that it filed a $1.2 billion lawsuit against ABC News, three reporters (Diane Sawyer, Jim Avila and David Kerley) and others, claiming ABC News made nearly "200 false, misleading and defamatory statements, repeated continuously during a month-long disinformation campaign...", engaged in "product and food disparagement, and tortious interference with business relationships." BPI called the ABC News series a 'concerted disinformation campaign' against LFTB." BPI claimed $1.2 billion in damages as a result of the ABC reports.
ABC News denied BPI's claims, and called the lawsuit without merit. ABC News sought to have the case removed from South Dakota state court to federal court. In June 2013, a federal judge sent the lawsuit back to state court.
On March 27, 2014, South Dakota state court Judge Cheryle Gering dismissed ABC's motion to dismiss, and allowed the defamation suit to move forward.
In a 2011 TV series
An episode of Jamie Oliver's Food Revolution, aired on April 12, 2011, depicted Jamie Oliver decrying the use of "pink slime" in the food supply and in school lunches. In the episode, Oliver douses beef trimmings in liquid ammonia while explaining what the product is and why he is disgusted with it. Oliver has stated, "Everyone who is told about 'pink slime' doesn't like it in their food—school kids, soldiers, senior citizens all hate it." The American Meat Institute and Beef Products Inc. retorted with a YouTube video featuring Dr. Gary Acuff of Texas A&M University questioning some of Oliver's statements and promoting the additive.
- Advanced meat recovery – a slaughterhouse deboning process by which the last traces of skeletal muscle meat are removed from animal bones after the primal cuts have been carved off manually
- Animal product – any material derived from the body of a non-human animal
- Meat slurry – a liquefied meat product
- Mechanically separated meat – a paste-like meat product produced by forcing meat products under high pressure through a sieve or similar device to separate the bone from the edible meat tissue
- Transglutaminase – a family of enzymes used in commercial food processing to bond proteins together
- Hagen, Elisabeth, "Setting the Record Straight on Beef", USDA blog, March 22, 2012
- Cooper, Brad (06/03/2014). "Derided beef product once referred to as ‘pink slime’ making a comeback". The Kansas City Star. Retrieved 30 June 2014. Check date values in:
- EDITORIAL: What's all the fuss about 'pink slime'?, The Express-Times, March 27, 2012, access date October 10, 2013
- AFA Foods blames 'pink slime' controversy for bankruptcy filing, Tiffany Hsu, The Los Angeles Times, April 2, 2012, access date August 4, 2012
- Will BPI's Plant Closures Affect America's Ground Beef?, James Andrews, Food Safety News, March 27, 2012, access date August 4, 2012
- 'Pink slime's' Beef Products Inc.: Hard knock for a good company?, Tiffany Hsu, Los Angeles Times, March 26, 2012, access date August 4, 2012
- Stern, Andrew (Edited by: McCune, Greg) (March 29, 2012). ""Pink slime" producer allows tour of plant to bolster image". Reuters. Retrieved March 31, 2012.
- Jamie Oliver Mischaracterizes Lean Beef on YouTube
- Avila, Jim (March 7, 2012). "70 Percent of Ground Beef at Supermarkets Contains ‘Pink Slime’ – ABC News". ABC News. Retrieved July 31, 2012.
- "Outraged, but not over pink slime". Cattlenetwork.com. April 12, 2012. Retrieved 2014-01-22.
- [dead link]
- [dead link]
- Lorna Barrett (March 8, 2012). "Consumer concerns about what's in ground beef". NewsNet5.com. Retrieved March 31, 2012.
- Jim Avila (March 8, 2012). "Is Pink Slime in the Beef at Your Grocery Store?". ABC News. Retrieved March 31, 2012.
- Jim Avila (March 21, 2012). "Safeway, SUPERVALU and Food Lion to Stop Selling 'Pink Slime' Beef". ABC News. Retrieved March 31, 2012.
- Senator Robert Menendez (March 15, 2012). "Menendez: USDA's Decision on Pink Slime A Good First Step, But More Needs To Be Done". Menendez.senate.gov. Retrieved April 1, 2012.
- Coghlan, Andy (March 19, 2012). "Is 'pink slime' being unfairly demonised?". New Scientist Magazine. Retrieved July 22, 2012.
- "'Pink slime': Combo of connective tissue, scraps hidden in your kids’ lunch". Fox News. March 8, 2012. Retrieved March 28, 2012.
- Zuckerbrot, Tanya (March 21, 2012). "Is 'pink slime' in ground meat safe?". Fox News. Retrieved July 19, 2012.
- "Meijer says meat will be free of "pink slime" in April". WZZM 13 News. Mar 23, 2012. Retrieved July 19, 2012.
- "Meat Industry and Government Records [accompanies article Safety of Beef Processing Method Is Questioned]". New York Times. December 30, 2009. Retrieved October 31, 2012.[dead link]
- "Lean Finely Textured Beef Fact Sheet". South Dakota Department of Agriculture. March 28, 2012.[dead link]
- Shin, Annys (June 12, 2008). "Engineering a Safer Burger". The Washington Post. Archived from the original on March 25, 2012. Retrieved April 1, 2012.
- "Lowes Food to stop selling 'pink slime' beef". The Business Journal. March 26, 2012. Retrieved April 1, 2012.
- Miltner, Karen (March 23, 2012). "Groceries address consumers' 'pink slime' concerns". The Ithaca Journal.
- Ross Boettcher (March 26, 2012). "BPI halts 'pink slime' production at 3 plants". Omaha World Herald. Retrieved March 31, 2012.
- J. M. Hirsh (March 16, 2012). "'Pink slime' sounds gross, but how does it taste?". Associated Press. Retrieved March 31, 2012.
- editorial (March 31, 2012). "The 'pink slime' lesson". Toledo Blade.
- Dan Piller (March 27, 2012). "Beef industry braces for loss of 'pink slime' filler". The Des Moines Register.
- Moss, Michael (December 30, 2009). "Safety of Beef Processing Method Is Questioned". The New York Times. Archived from the original on March 25, 2012.
- "Tyson executives say concerns about ‘pink slime’ in beef has hurt demand and will cut supply". The Washington Post. March 27, 2012.
- Dan Kislenko (March 24, 2012). "'Pink slime' stops at the 49th parallel". The Hamilton Spectator.
- ""Pink slime" is not used in Canadian beef, says industry (video)". Calgary Herald. March 9, 2012.
- "Canadian Food Inspection Agency, Fresh Meat Control Programs".
- Nutrition: America awakens to the sour taste of 'pink slime', The Independent, March 28, 2012, access date April 12, 2012
- "So What is Pink Slime Anyway?". The Nyack Villager. April 30, 2012. Retrieved July 19, 2012.
- Clarke, Josie (April 4, 2012). "Meat removal technique to be banned". The Independent. Retrieved July 19, 2012.
- March 25, 2012 (2012-03-25). "On pink slime, where's the perspective? - Los Angeles Times". Articles.latimes.com. Retrieved 2014-01-22.
- "Beef Products Inc. – History". Beef Products Inc. Retrieved March 31, 2012.
- Genetic Resources Action International (GRAIN) (2012). The great food robbery: How corporations control food, grab land and destroy the climate. Oxford: Pambazuka Press. p. 57. ISBN 9780857491138. Retrieved July 2012.
- "Bankrupt processor cites "pink slime" uproar". Reuters. Retrieved April 24, 2012.
- "Pink Slime: What's Really at Stake". The Atlantic. Retrieved April 24, 2012.
- Editorial (January 9, 2010). "More Perils of Ground Meat". The New York Times. Retrieved April 24, 2012.
- Crone, Kandiss (April 5, 2012). "USDA OK's 'Pink Slime' Labels". KMTV News (Omaha). Retrieved July 21, 2012.
- Dillingham, Jared (March 28, 2012). "USDA defends 'pink slime,' calls filler safe." KTVK, Inc. access date April 21, 2012
- Mae Anderson, Fresh & Easy lets shoppers swap 'pink slime' meat (March 27, 2010). Associated Press.
- Mike Argento, They put what in my cheeseburger? (March 16, 2012). The York Daily Record.
- Andy Bellatti, Beyond Pink Slime (March 13, 2012). Huffington Post.
- Tom Laskawy, 'Pink slime' is the tip of the iceberg: Look what else is in industrial meat (March 19, 2012). Grist.
- "Brownback says "pink slime" criticism unfair". KWCH Eyewitness News. Retrieved April 1, 2012.
- "Food facts get slimed by turn of a phrase". PITTSBURGH TRIBUNE. Retrieved April 1, 2012.
- "Letter from Beef Products, Inc. Founder Eldon Roth". BPI. Retrieved April 1, 2012.
- Avila, Jim (June 6, 2012). "America's Schools Say 'No' to Pink Slime, LFTB". ABC News. Retrieved July 21, 2012.
- (Staff report) (April 11, 2012). "Misinformation impacts beef demand: Beef industry challenged to alleviate concern about lean finely textured beef". Meat & Poultry (business journal). Retrieved July 20, 2012.
- O’Brien, Brendan (April 2012). "The Pink Slime Dilemma: Public outcry sparks debate over what to do with lean finely textured beef". QSR Magazine. Retrieved July 20, 2012.
- Concerns about “Pink Slime” in Beef Impact Americans’ Behavior, Says Study Commissioned by Red Robin (press release) (April 4, 2012).
- Martha C. White (March 29, 2012). "'Pink slime' is sticky problem for beef industry". MSNBC.
- Sue Gleiter (March 21, 2012). "Consumer activist group wants local grocers to label beef that has 'pink slime' filler". Patriot-News.
- Jim Avila (March 29, 2012). "'Dude, It's Beef!': Governors Tour Plant, Reject 'Pink Slime' Label". ABC News,. Retrieved March 31, 2012.
- ""Pink Slime" maker suspends operations". KTVX (ABC 4, Salt Lake City). March 26, 2012. Retrieved April 2, 2012.
- [Greenberg, Sally (March 28, 2012). "Statement of Sally Greenberg, NCL ED, on Lean Finely Textured Beef". National Consumers League. Retrieved July 20, 2012.
- Waldrop, Chris (March 26, 2012). "Statement of Chris Waldrop, Consumer Federation of America’s Director of Food Policy on Lean Finely Textured Beef". Consumer Federation of America. Retrieved August 6, 2012.
- "Three U.S. governors tour 'pink slime' meat plant". Reuters. March 29, 2012.
- Muskal, Michael (March 21, 2012). "Another major supermarket chain drops 'pink slime'". Los Angeles Times.
- Sorensen, Loretta (March 30, 2012). "Supporters Of BPI's Product Say, "Dude, It's Beef!"". Beef Magazine. Retrieved July 20, 2012.
- Pitt, David (April 4, 2012). "Some processors label beef containing 'pink slime'". Associated Press. Retrieved July 21, 2012.
- "Govs tour Neb. beef plant to see 'pink slime'". Yahoo! News. Associated Press. March 29, 2012. Retrieved July 19, 2012.
- "Database: Political contributions tied to Beef Products Inc.". Des Moines Register. April 1, 2012. Retrieved April 4, 2012.
- "Governors tour beef plant to see how 'pink slime' is made". The Huffington Post (Canada). March 29, 2012. Retrieved July 21, 2012.
- Lee, MJ (March 29, 2012). "Governors show love for 'pink slime'". Politico.
- Lopez, Ricardo (September 13, 2012). "Beef Products Inc. sues ABC News for defamation over 'pink slime'". Los Angeles Times. Retrieved September 13, 2012.
- Dreeszen, Dave (March 29, 2012). "Branstad urges schools to keep using lean beef product". Sioux City Journal. Retrieved April 1, 2012.
- Baertlein, Lisa; Geller, Martinne (March 30, 2012). "Wendy's jumps into "Pink Slime" public relations war". Reuters. Retrieved March 31, 2012.
- Knowles, David (March 19, 2012). "More supermarkets refuse to sell 'pink slime' in their meat". Q13 FOX News. Retrieved July 21, 2012.
- Wendy’s Runs Ads Saying Its Beef Is ‘Pink Slime’-Free (March 30, 2012). CBS New York/Associated Press. Accessed April 2, 2012.
- Tweet (March 29, 2012, 10:48 PM), Five Guys.
- "McDonald’s Announces End to ‘Pink Slime’ in Burgers - ABC News". Abcnews.go.com. 2012-02-01. Retrieved 2014-07-28.
- Laura McCrystal (April 1, 2012). "Customers flee from 'pink slime'". Concord Monitor. Retrieved March 31, 2012.
- "Pink slime perspective". Los Angeles Times. March 25, 2012.
- Dillon, Karen (March 24, 2012). "Kansas City area stores, schools say no to 'pink slime'". The Kansas City Star.
- "Supermarkets join move away from 'pink slime' beef filler". USA Today. Associated Press. March 22, 2012. Retrieved April 1, 2012.
- "Report: CPS May Have Served ‘Pink Slime’ In School Lunches". CBS Chicago. April 6, 2012. Retrieved July 21, 2012.
- Joanna Lin, How much 'pink slime' beef do schools serve? (March 27, 2012). California Watch.
- Letter from 41 Congressional Democrats to Secretary Vilsack (March 22, 2012).
- Gail Schontzler, 'Pink slime' beef controversy sizzles (March 21, 2012). Bozeman Daily Chronicle.
- Some schools planning to drop 'pink slime' meat (March 15, 2012). Associated Press.
- Most schools opt out of "pink slime" in lunches, USDA says, CBS News, June 5, 2012, June 9, 2012 access date
- Editorial (January 9, 2010). "'It's 100 Percent Beef': Company on Defensive as it Closes Plants". ABC News. Retrieved March 27, 2012.
- Betsy Blaney (March 26, 2012). "'Pink Slime' Beef Manufacturer Suspends Production At 3 Of 4 Plants Amid Outcry". The Huffington Post. Retrieved October 10, 2013.
- Jacob Bunge and Kelsey Gee (May 23, 2014). "Pink Slime' Makes Comeback as Beef Prices Spike Surging U.S. Beef Prices Revive Ingredient That Nearly Disappeared Two Years Ago". Wall Street Journal. Retrieved 31 August 2014.
- Cooper, Brad (06/03/2014). "Derided beef product once referred to as ‘pink slime’ making a comeback". The Kansas City Star. Retrieved 1 September 2014. Check date values in:
- Grant Schulte (May 8, 2012). "BPI to close 3 plants, blaming pink slime uproar". The Detroit Free Press. Retrieved October 10, 2013.
- Josh Sanburn (March 6, 2013). "One Year Later, The Makers of ‘Pink Slime’ Are Hanging On, and Fighting Back". Time.com. Retrieved 31 August 2014.
- "Pink Slime" controversy stokes clash over agriculture, Reuters, April 16, 2012, access date October 10, 2012.
- Milford, Phil, and Shruti Date Singh, AFA Foods Files for Bankruptcy Citing 'Pink Slime' Coverage (April 2, 2012). Bloomberg News. Retrieved October 10, 2013.
- Abad-Santos, Alexander, Slime Doesn't Pay: Ground Beef Processor Files for Bankruptcy (April 2, 2012), The Atlantic. Retrieved April 2, 2012.
- Meredith Davis, US cattle falls on technical selling, demand fears (April 3, 2012). Reuters.
- Theopolis Waters, CME cattle slip again on 'pink slime' controversy (April 4, 2012). Reuters.
- "Cargill to Label Products Containing Finely Textured Beef". Food Safety News (Marler Clark). 6 November 2013. Retrieved 31 August 2014.
- "BPI Lawsuit Against ABC And Others". 13 September 2012. Retrieved 1 September 2014.
- "'Pink slime' manufacturer sues ABC News for $1.2 billion in damages". CNN. 13 September 2012. Retrieved 1 September 2012.
- Schulte, Grant; Brokaw, Chet (September 14, 2012). "'Pink Slime' Lawsuit: Defamation Case Against ABC News Tough To Prove, Experts Say". Huffington Post. Retrieved December 1, 2012.
- "ABC News wants 'pink slime' lawsuit moved to federal court". Thomson Reuters. October 24, 2012. Retrieved October 29, 2012.
- "Judge sends Beef Products Inc. 'pink slime' defamation lawsuit against ABC back to state court". globalpost. June 12, 2013. Retrieved December 3, 2013.
- 'Pink slime' lawsuit moves forward: Could ABC News be held liable? Christian Science Monitor, by Patrick Jonsson, March 28, 2014.
- Barclay, Eliza (March 9, 2012). "Is It Safe To Eat 'Pink Slime'?". NPR. Retrieved July 21, 2012.
- Jamie Oliver's Food Revolution: Pink Slime – 70% of America's Beef is Treated with Ammonia on YouTube
- The 'Pink Slime' Story Continues (March 28, 2012). Jamie Oliver's Food Revolution.
- "Myth: Ordinary Household Ammonia is Used to Make Some Hamburgers". MeatMythCrushers.com. Retrieved March 8, 2012.
- He, Ying; Sebranek, Joseph G. (1997). "Finely Textured Lean Beef as an Ingredient for Processed Meats". ASL R1361. Beef Research Report. Retrieved January 24, 2013.
- Niebuhr S.E.; Dickson J.S. (May 1, 2003). "Impact of pH Enhancement on Populations of Salmonella, Listeria monocytogenes, and Escherichia coli O157:H7 in Boneless Lean Beef Trimmings (Abstract)". Volume 66, Number 5. Journal of Food Protection (International Association for Food Protection). pp. 874–877. Retrieved October 10, 2013.
- Van Laack, Riëtte L.J.M; Berry, B.W., Solomon, M.B. (September 1997). "Cooked Color of Patties Processed from Various Combinations of Normal or High pH Beef and Lean Finely Textured Beef (Abstract)". Volume 8, Issue 3. Journal of Muscle Foods. pp. 287–299. Retrieved July 19, 2012. (subscription required)
- Aleccia, JoNel (April 4, 2012). "'Pink slime' in your meat? Labels to tell you, USDA says". NBC News. Retrieved July 20, 2012.
- Glen, Barb (June 22, 2012). "Lessons learned for Cargill in pink slime’s ‘ick’ factor". The Western Producer. Retrieved July 18, 2012.
- Gruley, Bryan; Campbell, Elizabeth (April 12, 2012). "‘Pink Slime’ Furor Means Disaster For U.S. Meat Innovator". Bloomberg. Retrieved July 19, 2012.
- Lewis, Al, “Dude, people just don’t want to eat pink slime”, MarketWatch, April 4, 2012. Retrieved April 4, 2012.
- Meece, Mickey (March 27, 2012). "'Pink Slime' Controversy Takes a Toll on Beef Producer". Forbes Magazine. Retrieved July 18, 2012.
- "Pink slime saga boosts beef exports". The Australian. June 19, 2012. Retrieved July 18, 2012.
- Siefer, Ted (July 10, 2012). "School board votes to donate 'pink slime'". Union Leader (New Hampshire). Retrieved July 18, 2012.
- Stebbins, Christine (July 12, 2012). "Cargill buys AFA Foods Fort Worth beef processing plant". Reuters. Retrieved October 10, 2013.
- Wessler, Brett (June 25, 2012). "Former BPI employee plans lawsuit for pink slime frenzy". Drovers/CattleNetwork Magazine. Retrieved July 18, 2012.
- Roth, Elden (May 20, 2003). "Apparatus and Method for Physically Manipulating Materials to Reduce Microbe Content". United States Patent Number 6,565,904 B2. United States Patent and Trademark Office. Retrieved July 22, 2012.
- Schaefer; (et al.) (October 12, 1999). "Low Temperature Rendering Process". United States Patent Number 5,965,184. United States Patent and Trademark Office. Retrieved July 22, 2012.
|Pink slime kibble|
|Giant rolls of pink slime being flash frozen|
|A frozen brick of pink slime, the finished product|
|A brick of pink slime being sliced|
|An image of pink slime used by the meat industry association|
|(March 26, 2012). "'Pink Slime' Manufacturer Suspends Operations." ABC News.|
|(Mar 16, 2012). "The Facts About Lean Finely Textured Beef." American Meat Institute|