Briefly explain the introduction of the processing of mix fruit jelly from pineapple, orange, lemon, gelatin and sugar.

The processing of mixed fruit jelly typically involves a few key steps. Firstly, the fruits (such as pineapple, orange, and lemon) are washed, peeled, and cut into small pieces. These pieces are then boiled with water and sugar to extract their juices, which are then strained to remove any solid bits.

Gelatin is then added to the fruit juices to help the jelly set. The mixture is heated until the gelatin is fully dissolved. This liquid is then poured into molds and allowed to cool and set in the refrigerator for several hours.

Once the jelly has set, it can be removed from the molds and cut into pieces for serving. The end result is a delicious mixed fruit jelly that combines the flavors of pineapple, orange, and lemon in a sweet and tangy treat.