Red-leaf plum soaked in salt water to make jam or juice is not sour.

1, salt water soaking: Red-leaf plum can be soaked in salt water, which can neutralize some fruit acids, reduce the acidity of fruit and make it taste sweeter.

2. Make jam or juice: Make red-leaf plum into jam or juice, and add appropriate amount of sugar or honey to neutralize fruit acid and increase sweetness, while retaining the nutrients of red-leaf plum.