Who invented the first canning method for preserving food?

The first method for preserving food by enclosing it in hermetically sealed containers was invented by the French chef and confectioner Nicolas Appert.

In 1809, following a 14-year period of experimentation, Appert developed a process that involved sealing food inside glass bottles or jars and heating them in boiling water to prevent spoilage. While Appert pioneered this preservation technique, it was Peter Durand who later patented the use of tin-coated iron cans in 1810, which eventually replaced the glass containers used in the original method. It was not until 50 years after Appert's invention that Louis Pasteur provided the scientific explanation for the process, identifying that the heat killed microorganisms and the seal prevented their reentry.12