The reason why apples shrink after being stored in the refrigerator may be that their water content is too high and they gradually lose water at low temperature, which leads to the phenomenon of shrinking apples. Generally speaking, the surface shrinkage of apples after cold storage will not have obvious influence on the pulp, but the appearance will change.

As for boiled water, semi-shriveled apples can be used to boil boiled water, provided that the inner pulp of the apples is not rotten, deteriorated or abnormal, and is not polluted by harmful substances or pollutants. Please make sure to wash the apples before boiling water to remove the dirt on the surface.

However, the shrinkage of apples after cold storage may affect the taste, and the texture of pulp may become soft or sticky. So boiled apples and fresh apples may taste different. If you don't like this change in taste, it is recommended to choose fresh apple boiled water or other eating methods.