First of all, it needs to be stored in a refrigerator below - 10 ℃. If it is in the process of transportation, it also needs to keep this temperature, because this precooling process can effectively prevent it from rotting. Therefore, the cooling methods of precooling include cold water cooling, cold air cooling and vacuum cooling.
The effect of vacuum cooling is very good. It can quickly cool to evaporate the water so as to achieve the cooling function. It usually takes half an hour to reach
This method of cooling with cold water, compared with vacuum cooling, is faster, because it can keep the temperature of blueberry, but a bad feature of this method may cause the fruit to rot.
The method of cooling by cold air is very effective. Cooling by cold air can make its temperature reach a certain temperature effect, which is conducive to preservation.
In addition to the above several methods, there is also a way of frozen storage. Put blueberries in the refrigerator to keep them frozen. The frozen temperature is below - 20 degrees, which can effectively preserve the temperature of blueberries. But in this way, the fruit will break. If you freeze for a long time, it will change color easily.
Blueberry is a kind of fruit that we like to eat, but there are some ways to keep it well. The above ways have advantages and disadvantages. I hope you can use these ways flexibly.
