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 ...

Jam can be made with many different types of fruit. Not to be confused with jelly, jam tastes delicious on breakfast pastries like croissants, muffins and scones, but it is also a delicious addition ...

However, low-sugar and freezer (uncooked) jams, do require the addition of pectin. Commercial pectins are not interchangeable, but the fruit used in most recipes is. Be sure to use the specific kind ...