Fans of watermelon jam should keep in mind that vitamin B2, which is especially rich in watermelon, is not destroyed during heat treatment, therefore, watermelon jam is not only a delicacy, but also a very healthy food product.
It is necessary
- - glass jars;
- - metal covers with rubber gaskets;
- - a machine for rolling lids.
Instructions
Step 1
Prepare fresh watermelon jam for storage: leave the hot jam to cool without closing the container or covering only with gauze. Since watermelon jam is prepared in syrup, it does not need to be kept for a long time before clogging, as is done with other types of jam to better saturate the berries or fruits with sugar. Watermelon jam can be poured into jars and hot, but before rolling the lids you need to wait until it cools down, otherwise water vapor from the hot jam will condense on the lid and drain inside, and this can cause souring of the top layer.
Step 2
Prepare glass jars for jam: take small jars (0.5 l or 1 l), wash in warm water, if heavily soiled, use a detergent, dry, sterilize jars with hot steam for 10 minutes, and metal lids for them put in boiling water for 10 minutes. Remove the cans from the steam, place them on a clean towel with their toes facing down, remove the lids and place them on the towel.
Step 3
Pour the cooled jam into cooled jars, roll up hermetically with a machine, store in a cool dry place and protected from light. With a hermetically sealed jam, the jam can be stored for a long time at room temperature and in a room with high humidity. In this case, grease the metal covers with petroleum jelly to prevent rust.
Step 4
Close the jam jars in another way: make a three-layer lid from a layer of parchment paper, a cardboard mug and a top layer also of parchment paper, place on top of the jar and tie with twine. The jars closed in this way are stored only in a dry and cool room, at a temperature of 10 to 12 ° C, and in a place protected from light. Make sure that the temperature in the storage area does not drop to minus marks, in this case the glass may break.
