Once the sealed juice is opened, the nutrition of the juice will be easily decomposed in the air, so it can't be stored in the refrigerator for too long. For example, aseptic juice made of citrus, grapefruit and pineapple can be stored for 7- 10 days.

Other low-acid juices, such as apples and grapes, can only be kept for one week after opening. If the juice you buy has not been sterilized at high temperature, even if it has not been opened, you should drink it within one week, otherwise it will be very unpalatable. In addition, if you squeeze juice at home, you should first wash the fruit with cold tap water, and then wash it with fruit lotion and hot water once to ensure the hygiene of the squeezed juice.

Nutritional loss of fruit juice:

It is worth noting that during storage, vitamin C is the fastest lost component in fruit juice. Different kinds of fruit juices are stored under different conditions, and the loss rate of vitamin C ranges from 20% to 100%.

Generally speaking, the greater the acidity of fruit juice, the longer the storage time of vitamin C, because vitamin C is the most stable under such conditions, and microorganisms are not easy to reproduce. Hawthorn juice, citrus juice, grape juice, etc. It can be stored in the refrigerator for 3-5 days after opening, while peach juice and pear juice with low acidity should be drunk within 2 days after opening.