Sour sanding, or sour sugar, is a food ingredient that is used to impart a sour flavor, made from citric or tartaric acid and sugar. It is used to coat sour candies such as acid drops and Sour Patch Kids, or to make hard candies taste tart, such as SweeTarts.
Stabilizers are used to keep it from getting moist or clumping.
- Robyn, R. Loewen; Robert, J. Marolt; John, D. Ruby (Mar–Apr 2008). "Pucker up: the effects of sour candy on your patients' oral health. A review of the dental erosion literature and pH values for popular candies". Northwest Dentistry 87 (2): 20–21, 24–25, 28–29 passim. ISSN 0029-2915. PMID 18491469.
- "Delivering better oral health: an evidence-based toolkit for prevention" (PDF). Public Health England. June 2014.
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