How to test vinegar

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วันที่ 14-01-2555

You can notice it from chili in is rotten and vinegar is moody or taste by put parsley in there if it dried in 15 minutes it mean it is fake vinegar because it may be made from acid. You can check it by use Gentian Violet 2-3 drop if color not change it mean it real but if color change to be green or blue it mean fake so not use it because it is dangerous.