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 ...

Experienced jelly-makers will tell you one enduring fact: All pectin is not created equal. The two types of pectin – liquid and dry – are safe for most people. Which one home cooks use, says Kansas ...

Many cooks have a bit of trepidation about canning. And with good cause — canned low-acid foods such as vegetables, meats and some tomatoes can harbor harmful organisms if not processed properly. But ...

Jelly, jam, and preserves are all types of fruit spreads made from heating pectin, sugar, and acid. Jelly is made from fruit juice and has a firmer gel and a smooth texture. Jams and preserves are ...

Summer might be over, but that doesn't mean we can't still jam. As we welcome fall with open arms and a closet full of chunky sweaters, we also get to usher in the opportunity to smear apple jelly on ...

Pectin is a naturally occurring thickener and stabilizer, helping jams, jellies, and fruit preserves set. Scientifically speaking, it’s a soluble fiber (a.k.a. a type of polysaccharide) found in the ...