... time, and also has good resistance to high temperature in an acidic medium.·Quality StandardItemsEnterprise StandardPowderLiquidColor Value E(1%,1cm,PH3.0 ... water first, and then mix the color solution with food materials.·Usage Reference(in compliance with GB2760 Hygienic standards for uses ... NO. Natural Additives,365 FDA NO. 21CFR,§73.169 health raw materials natural ingredient Grape Skin Extract