Ammonia Caramel
The short version
Class III caramel — ammonia-processed coloring used in beer, gravies, and dark sauces. Contains 4-MEI.
The caramel colour in many sauces and beers. The ammonia used to make it can leave traces of 4-MEI, a compound flagged as a possible carcinogen in animal studies. Levels are low and debated, but that's why we flag it.
Safety profile
ADI of 0–100 mg/kg body weight (EFSA 2011 re-evaluation, separated from the other caramels). The main toxicological concern is 4-MEI. JECFA, EFSA, and FDA position is that exposure at typical dietary levels stays below thresholds of concern, but cola and beer with high E150c/d levels have been reformulated downward following California Prop 65 listing of 4-MEI in 2011.
Educational information only. Not medical or dietary advice.