Making a jam at home is no brainier task.Trust me it is as simple as that.The thumb rule for jam making is the ratio of fruits to sugar .Sugar is the preservative in this context .No,you don't need any other preservatives to preserve your jam.Usually the ratio is 2:1,two parts fruit and one part sugar.This one completely depends on the jam you are making ,the combination of fruits used and above all the taste of fruit-citrus, sweet,bland ,sour.Depending on the above factors you can increase or decrease the quantity of sugar as per your choice.
