In 1809, a French confectioner and brewer,  Nicolas Appert, observed that food cooked inside a jar did not spoil unless the seals leaked, and developed a method of sealing food in glass jars.
In 1809, Nicolas Appert, a French artisan who worked with both confections and beverages, discovered that food kept inside a tightly sealed container did not spoil and created a method to preserve food using glass jars.