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.

Homemade fruit jam is a delicious, easy way to preserve the flavors of fresh fruits like strawberries, blueberries, or peaches. This recipe combines your favorite fruits with a touch of lemon juice ...

You combine the pectin with sugar and add fresh fruit and acid.) After three minutes of stirring, pour it into straight-sided plastic containers. After 24 hours in the refrigerator, you have homemade ...

Summer is here! Instead of writing about harvesting we are simply out harvesting. This is that time of the year when we are so busy we have no idea what time of the evening it is. In the middle of ...