Add Yahoo as a preferred source to see more of our stories on Google. We use strawberry jam as an example to explore the underlying principles of water activity, a key technique for food preservation.

Making homemade jam can seem incredibly complicated and intimidating. Do you have to can it? What if you don’t have the equipment? And what if it doesn’t set?!! However, as someone who was stirring ...

From traditional stovetop preserves to quick freezer jams, making your own jam is a blend of science, creativity, and care. The right balance of fruit, sugar, acid, and pectin can turn seasonal ...