1, whole potatoes can be peeled. Potatoes have a toxic ingredient-Solanum nigrum, which is a sharp weapon for potato self-protection. It is concentrated on the skin and near the skin. In general, its content is very low. Even if you don't peel it, you won't be poisoned as long as you don't eat much.

2. Potatoes that sprout, turn green or rot must be peeled or thrown away. The general content of Solanum nigrum in potato is 2 ~ 10 mg/ 100 g, and it can reach 35 ~ 40 mg/ 100 g after germination and skin turning green, which can cause poisoning.

3. You can't eat the ones that germinate more or the pulp turns black and green. If there is not much germination, the buds and their parts can be removed, peeled, soaked in clear water for 30 ~ 60 min, and some vinegar can be added during cooking to destroy the residual toxins.

4. Solanum nigrum is the most abundant in bud and its parts. Serious poisoning can occur when 0.2~0.4g solanine is ingested.

Extended data

The incubation period of poisoning is 10 minutes to several hours, and the symptoms are itchy tongue and pharynx, heartburn and gastroenteritis. Symptoms such as dilated pupils and tinnitus; Seriously ill people twitch, lose consciousness and even die.

Potatoes should be stored in a dry and cool place or irradiated to prevent germination.

References:

Baidu encyclopedia-potato