1. Clean the apples, remove the pedicles, and wipe off the water on the surface with kitchen paper;
2. cut the apple in half and then cut it into countless small pieces;
3. Put it into a clean, water-free and oil-free glass bottle, with a layer of apples and a layer of rock sugar until it is full;
4. Pour in rice vinegar and cover with a fresh-keeping bag;
5, after the cover, sealed for more than three months;
6, pour out and filter when drinking, add fresh apple juice, and the taste is better.