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.

Capture the sweetness of ripe fruit to enjoy all year long with this collection of homemade jams and jellies. If you are new to canning and preserving these easy to follow recipes will help you master ...

This easy homemade strawberry jam is sweet, fresh, and packed with real strawberry flavor. A simple recipe that’s perfect for ...

But if that fresh strawberry gets a little too ripe and a bit mushy (but not moldy), the magic fades a bit. That's ...