1. First of all, preserved fruit is a kind of food made from fresh fruit through peeling, coring, sugar boiling, soaking, drying, sorting and packaging. Bright and transparent, dry surface, a little sticky, water content below 20%. There are many kinds of preserved fruits. The famous traditional products are preserved apples, tamarind, apricot, pear, peach, Taiping, green plum, hawthorn slices and peony peel.

2. Raisins have high sugar content and can be kept fresh without any preservatives. In addition, if the raisins are refrigerated, their taste, color and nutritional value can be maintained for fifteen months. The quality of frozen raisins will not be affected, and will soften quickly at room temperature.