Can walnuts turn yellow and bitter to eat? You'd better not eat walnuts when they turn yellow. They should have gone bad. Bitter is spicy, and there will be numbness and pungent smell. Generally, there are two reasons, one is the oxidation of oil in walnuts, and the other is the reproduction of bacteria. The yellow part of walnut kernel contains a lot of aflatoxin, which is mostly caused by mildew due to long storage time due to moisture.
How to deal with the bitter taste of walnuts 1: After the walnut is shelled, the surface of the meat has a layer of skin. Bitter taste mainly comes from this skin, and you can eat it if you remove it. The easiest way to peel the walnut kernel is to soak it in water and then pick it up with a bamboo stick, so that the walnut kernel can be easily peeled off. If you put some salt in boiling water, the effect will be better.
Method 2: After the walnuts are peeled, put them in a bowl and soak them with proper amount of water. After soaking for 3 hours, change the water and soak for 3 hours. Then you can take out the walnuts and eat them.
How long is the shelf life of walnuts?
1, walnut oil, the shelf life of ordinary processed walnut oil is 3 months, and the shelf life of refined walnut oil is 12 months.
2. The storage period of dried walnuts in cold storage is 10 month.
3. The shelf life of fresh walnut (wet walnut) is 15 days.
4. The shelf life of green walnut is 1 month.
Generally, the shelf life of walnut kernel is 6 months.