Can peanuts with shells from 3 years ago still be eaten

Peanuts with shells from 3 years ago can usually be consumed if stored properly and without mold or insect infestation, but their nutritional value and taste may decrease. If the storage environment is humid or the packaging is damaged, causing abnormal mold growth, halitosis, etc., it is not recommended to continue consuming. Shell peanuts can be stored for 1-2 years under dry, cool, and well sealed conditions. When the shell is intact and undamaged, and the peanut kernels inside are not discolored or moldy, it can still be consumed after sufficient air drying or low-temperature baking. This kind of peanut may lose its flavor due to oil oxidation, but will not produce harmful substances. It is suitable for cooking Congee or making peanut butter and other foods that need high temperature treatment. If the peanut shell has mold spots, insect holes, or if the kernel turns yellow, black, and has a pungent crackling smell after peeling, it indicates that aflatoxin contamination or oil rancidity has occurred. Aflatoxin is heat-resistant and highly toxic, and cannot be decomposed even when cooked at high temperatures. It may damage the liver after consumption. Moisture or temperature fluctuations during storage can accelerate the deterioration of peanuts, and it is safer to dispose of them directly in such situations.

It is recommended to carefully check the appearance and odor of peanuts before consumption, and prioritize selecting newly produced peanuts from the same year to ensure nutrition and safety. When storing, use sealed cans and place desiccants in a dark and ventilated place. If long-term storage is required, the shell can be peeled and frozen, but it should not exceed 6 months. Elderly people, children and other immunocompromised individuals should avoid consuming nuts that have been stored for too long.