Fresh blueberries should be put in the refrigerator immediately, and the best storage temperature is 1 ~ 3℃, which can keep fresh for 5-7 days. If you want to eat fresh blueberries, don't put them in the refrigerator below 0℃.

However, it is not recommended to wash blueberries with clear water before putting them in the refrigerator, because water can easily rot blueberries. You can put blueberries in a fresh-keeping box and wrap them tightly with plastic wrap, which will keep them for a long time. If you find that blueberries are soft and the frost on the surface slowly disappears, it means that blueberries are not so fresh, so you should eat them as soon as possible.

The size and color of blueberry fruit vary from species to species. Most varieties have dark blue or violet fruits when they are ripe, such as rabbit eye blueberry, high bush blueberry and short bush blueberry, and a few varieties are red.

Other preservation methods of blueberries

1, stored at room temperature

Blueberry fruit is berry-shaped, and has strong storage resistance. At the indoor room temperature of 18~26 degrees, fresh fruits in small packages can be stored for two weeks without changing their original flavor. If stored at low temperature, its shelf life will be longer, and it can be stored for about three months under controlled atmosphere.

2. Processing and freezing

Processing frozen fruits is a trend of berry utilization. Blackberry, raspberry and strawberry can be processed into frozen fruits, but the above three berries are easy to change color and crack when frozen, while blueberry fruits are not. Compared with strawberry, raspberry and other fruits, blueberry fruit is hard and suitable for frozen fruit processing.

Step 3 make blueberry sauce.

If you don't eat blueberries for a while and like the taste of blueberries, you can make blueberries into blueberry sauce and eat them with dessert and bread. The preparation method is very simple. Mash blueberries first, then add lemon juice and sugar, put them in a pot, simmer them into a slurry, then put them in a glass bottle, seal them in the refrigerator and take them out when necessary. Besides blueberry sauce, you can also dry blueberries and eat them.

Refer to the above content: Baidu Encyclopedia-Blueberries