What You Need to Know
Salting creates an osmotic gradient that draws water out of cells, reducing microbial metabolism. Pickling lowers pH through acetic or lactic acid, denaturing enzymes and creating an anaerobic environment. Potting seals the food and applies heat to form a vacuum seal, further reducing water activity.
The Science
Primary Reaction
Osmotic dehydration, acidification, and vacuum sealing reduce water activity and inhibit microbial growth.