How to make jam from berries. Jam.an ordinary thing to do with berries and fruits (and sometimes even c vegetables) is to make jam from them. The general principle of cooking is as follows. Cooked and washed fruits are poured with hot sugar syrup and kept for 4-12 hours, then slowly heated, brought to a boil and boiled for 5-7 minutes. Then remove from heat and incubate for 3-4 hours in order to be well soaked in syrup. After that, all this is again brought to a boil, cooled, incubated for 4-8 hours. And then they boil it all over. It is with such a complicated, at first glance, technique of cooking, the fruits are not boiled soft and the jam is transparent. Sugar is calculated so that for every kilogram of berries or fruit it takes at least 1 kilogram of sugar.
