Jam is a preserve made boiling fresh pulp of fruits that have pectin,with sugar and citric acid in definite proportion.
Pectin is one of the important ingredients of fruit that holds particles of jam together firmly.For preparing jam from any fruit one need to get information about amount of pectin present in fruit.
Jam can be prepared from the fruits having soft pulp inside.Proper proportion of sugar helps to preserve jam. High temperature is requiredfor achieving needed consistency and concentration of sugar.