How long can blueberries be kept

Many people will store blueberries directly in the refrigerator, but some moisture and water vapor will be generated during the storage process in the refrigerator, which will cause the blueberries to rot faster. If you want to keep the blueberries fresh, you must first pay attention when making them. It is recommended to defrost as many blueberries as you want to eat, and then freeze them, because frozen blueberries will be fresher and less likely to deteriorate.

It is best to put fresh blueberries into the refrigerator immediately after purchase. The best storage temperature is 1~3°C. It can be insured for 5-7 days. If you want to eat fresh blueberries, never place them in a refrigerator below 0°C.

It is not recommended to wash blueberries with water and then put them in the refrigerator, because the moisture can easily cause the blueberries to rot. Therefore, keeping the surface of the blueberries dry is the only way to extend the shelf life of fresh blueberries.

The temperature of fresh blueberries should also be kept below 10°C during transportation. However, the fruit must undergo a pre-cooling process when the field temperature drops below 10°C to remove the heat from the fruit in the field in order to effectively prevent rot. The main pre-cooling methods are vacuum cooling, cold water cooling and cold air cooling.

Can fresh blueberries be frozen?

If you cannot finish eating fresh blueberries on the same day after buying them home, you should refrigerate them to keep them fresh. The refrigeration time should not be too long. If you find any spoiled fruit during refrigeration, pick them out and throw them away in time.

The way to store a large amount of fresh blueberries is to divide them into three parts: one part is set aside for 1 to 2 days' consumption and stored at room temperature without refrigeration, one part is set aside for 7 days' consumption and refrigerated at 0 to 2°C, and one part is directly frozen at -18°C for long-term storage.

The maturity of fresh blueberries varies, so the refrigerated preservation time varies. If you find that they are spoiled during refrigeration, you may need to freeze them in time. It is recommended to seal with plastic wrap when refrigerating or freezing to prevent the blueberries from losing moisture or mixing with other foods. Frozen fruit tastes best when eaten directly after thawing for 10 to 20 minutes. It is recommended to thaw as much as you want to eat. Thawing and then freezing may cause the taste to deteriorate.

Blueberries can be frozen. Blueberries can be quick-frozen for storage. Quick-frozen blueberries are fresh blueberries that are picked and immediately placed in a quick-freezing tunnel or quick-freezing cold storage for freezing, which then forms tiny ice crystals. This will not damage the cell tissue of the blueberries, but also ensure the taste and aroma of the blueberries, and allow the quick-frozen blueberries to be stored for a longer time. Quick-frozen blueberries are better in terms of transportation, storage, shelving, and preservation.

Blueberry cold storage is mainly built in blueberry planting bases and other areas to freeze and preserve blueberries after picking. Low-temperature freezing can fully preserve the taste and nutritional value of blueberries, making them suitable for long-term consumption by children and pregnant women. The best refrigeration temperature for blueberries is around 1℃~3℃. If you want to store them for a long time, you can use quick freezing. Many blueberries on the market are currently stored using quick freezing.