How to preserve sunflower seeds and peanuts without spoilage

Guazi peanuts can extend their shelf life through sealed refrigeration, drying and avoiding light, vacuum packaging, regular inspection, and freezing storage.

1. Sealed refrigeration

Place melon seeds and peanuts in a food grade sealed jar or fresh-keeping bag, exhaust the air, and place them in the refrigeration layer of the refrigerator. Low temperature environment can effectively inhibit oil oxidation and mold growth, especially suitable for opened nuts. Be careful to avoid mixing with strongly scented food to prevent cross flavors from affecting the taste.

2. Dry and dark

Choose a cool and dry cabinet to store unopened original packaging, away from heat sources such as stoves. Direct sunlight can accelerate the deterioration of fat, and humidity exceeding 60% can easily lead to mold growth. Can be stored together with food desiccants or untreated raw rice to enhance moisture resistance.

3. Vacuum packaging

Use a household vacuum machine to divide large packages into small portions and vacuum process them, taking a single serving amount each time. The vacuum state can isolate oxygen and moisture, extending the shelf life to more than six months. Before packaging, ensure that the nuts are completely cooled to avoid condensation inside the packaging due to residual moisture.

4. Regular inspection

Check the stored melon seeds and peanuts every month for any signs of crackling, mold, or insect infestation. Slightly spoiled nuts can produce aflatoxin and should not be continued to be consumed. During inspection, a small amount can be taken and placed in clean water. Floating particles may have deteriorated and need to be discarded.

5. Frozen storage

Nuts that are not consumed in the short term can be sealed and placed in a freezer, which can maintain a temperature of minus 18 degrees Celsius for more than a year without spoilage. Before consumption, it is necessary to remove and warm it up in advance to avoid the attachment of condensed water. This method is particularly suitable for nuts with high oil content, such as walnut kernels and macadamia nuts.

It is recommended to prioritize nuts with shells for daily storage, as the shell can naturally block air and moisture. Try to consume within two weeks after opening to avoid repeated thawing. If the color of nuts becomes dark, the taste becomes soft, or there is an odor, they should be immediately stopped from consumption. Storing together with vitamin E capsules or tea bags can further delay the oxidation process. Before consumption, it can be baked at low temperature to restore its crispy texture, but the temperature should be controlled to avoid nutrient loss.