1, potatoes are edible when oxidized to black, but it will affect the taste and reduce the nutritional value. It is recommended that you eat and peel them now.

2. The main reason why potatoes turn black is that potatoes contain a certain amount of phenolic substances, and these classified substances can easily react with oxygen in the air and turn black when exposed to air for too long, but this will not breed unhealthy substances, which are still edible and harmless to the human body, so potatoes can also be eaten after being oxidized to black.