Whisk together sugar and pectin in a bowl. Whisk together calcium powder and ½ cup water in a separate bowl until dissolved.

We use strawberry jam as an example to explore the underlying principles of water activity, a key technique for food preservation. For those of us in northern climates, strawberries are the first ...

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 ...

There’s something truly special about making your plum jam at home. This plum jam recipe with pectin brings out the bright, tangy sweetness of ripe plums and simplifies the canning process, making it ...