Purple potato turns green. Can you put it in vinegar? Introduction: Purple sweet potato turns green. Can it be put in vinegar?

1, yes. Purple sweet potato turns green mainly because it reacts with alkaline water. Therefore, in the process of cooking porridge, dropping a few drops of vinegar can prevent the phenomenon of turning green.

It's best to drop vinegar when you start cooking porridge. Vinegar is an acidic substance, and purple potato porridge will turn purple when boiled with some citric acid or acidic substances. Rice porridge belongs to alkaline environment. It turns blue after adding purple potato, which is a normal phenomenon and can be safely eaten.

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