Michigan State University Extension
Preserving Food Safely - 01600553


Freezer jam is often called uncooked jam. As noted by at
least one manufacturer of pectin, a few sugar crystals will
remain in freezer jams. Nothing can be done about this.

If freezer jam is too firm, stir to soften. If it tends to
separate, stir to blend. If it is too soft, bring it to a
boil. It will thicken on cooling.
Store uncooked jams in the refrigerator or freezer. They
can be held for up to four weeks in a refrigerator or up to
a year in a freezer. If kept at room temperature, they will
mold or ferment in a short time. Once a container is opened,
jam should be stored in the refrigerator.

Freezer jams can be made with powdered or liquid pectin.
Check commercial packages for the recipes.

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