This recipe is quite straightforward and ensures that the berries retain all their vitamins for a relatively long time. Depending on your preference, mix ripe raspberries with sugar in a ratio of either 1:1.5 or 1:2. The granulated sugar acts as a preservative, helping the crushed berries stay fresh longer.
As mentioned before, this uncooked raspberry and sugar product has a shorter shelf life than thermally processed jam. Try to consume it within two months if stored in a pantry without heating, and within about six months if stored in the refrigerator.