Baseball Rubbing Mud
Before Baseball Rubbing Mud, baseballs were rubbed in a mixture of water and infield dirt, but this method usually discolored the ball's leather surface. Other alternatives at the time were tobacco juice, shoe polish, and dirt from under stadium bleachers. They were able to successfully take off the sheen from baseballs, but at the same time, they also damaged and scratched a ball's leather. While Lena Blackburne was a third-base coach for the Philadelphia Athletics baseball team, an umpire complained to him about the method used at the time, prompting Blackburne to set out in search of better mud to use to rub against baseballs in 1938. Later that decade, Blackburne discovered the rubbing mud's location (said to be 'near' Palmyra, New Jersey) and founded the company that he used to sell it. According to the company, the entire American League used the mud soon after its discovery, and by the 1950s, it was in use by every major league team, along with some minor league and college teams.
The mud originates from the New Jersey side of the Delaware River. The mud is cleaned and screened before sale. Each year the owner, Jim Bintliff, visits the mud's source and returns with 1,000 pounds of it to store over the winter and sells it the following baseball season. Before all major- and minor-league baseball games, an umpire rubs six dozen or more balls with the Baseball Rubbing Mud to give them a rougher surface, making them easier for pitchers to grip (MLB Rule 3.01c). The rubbing mud's unique feature is that it is "very fine, like thick chocolate pudding", and it has been considered the "perfect baseball-rubbing mud".
- Schneider, Jason (2006-07-04). "All-American mud needed to take shine off baseballs". The Florida Times-Union. Retrieved 2009-10-06.
- "Secret Dirt's Pivotal Role In Baseball". NPR. 2009-04-06. Retrieved 2009-10-06.
- Nordell, John (2005-10-18). "The dirt on baseball". The Christian Science Monitor. Retrieved 2009-10-06.