The Science Behind Your Canning Process: What Every Home Preserver Must Know
Modern canning began in the early 1800s when the French government offered a 12,000-franc reward for a reliable way to preserve food for the military. In 1809, Nicolas Appert invented a method that involved sealing food in glass jars and heating them. This technique was revolutionary at the time, and years later, Louis Pasteur’s research on microorganisms provided the scientific explanation for why it worked.
Modern canning has its roots in the early 1800s. The French government offered 12,000 francs to anyone who could preserve food for military











