Normal. Garlic boiled water turns green, usually because spices such as sugar or vinegar are added in the cooking process, and the ingredients in sugar, vinegar and garlic react to produce allicin and allicin. After the two ingredients are mixed, garlic will turn green. However, if the surface of garlic turns green due to mildew before cooking, it is not recommended to continue eating it, so as not to cause gastrointestinal discomfort.

Garlic boiled water turns green and normal. Garlic boiled water turns green, usually because spices such as sugar or vinegar are added in the cooking process, and the ingredients in sugar, vinegar and garlic react to produce allicin and allicin. After the two ingredients are mixed, garlic will turn green. However, if the surface of garlic turns green due to mildew before cooking, it is not recommended to continue eating it, so as not to cause gastrointestinal discomfort.