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.

If you’re never made jam before, the process may seem daunting. But homemade jam is surprisingly simple — and the results will blow any store-bought jar out of the water. Here are 17 of our easiest ...

Homemade strawberry jam is a classic treat that brings out the best of fresh summer strawberries. Whether spread on warm toast or spooned over pancakes, this sweet and slightly tangy jam is packed ...

From berries and peaches to rhubarb, this versatile jam recipe transforms fresh fruit into deliciously sweet preserves. Once macerated, the fruit mixture is cooked into a glossy, jewel-toned jam. “The ...

Use any thick jam in Yewande Komolafe’s strawberry jam bars with cardamom — ideally something tart to balance that sweet crumbly topping. By Melissa Clark Yewande Komolafe's strawberry jam bars with ...

Plums have long been a symbol of Christmas, with plum pudding — also known as Christmas pudding or figgy pudding (which is not a pudding in the American sense, but a dense British fruit cake) — ...