The Appert Method

The Appert Method, developed by Nicolas Appert in the early 19th century, is a process for preserving food by sealing it in airtight containers, typically glass jars, and then heating them to kill bacteria and prevent spoilage. This technique, known as canning, involves placing food in a jar, sealing it with a lid, and boiling it in water to create a vacuum. The vacuum prevents bacteria from entering and growing, allowing the food to stay safe and fresh for long periods. This method revolutionized food storage and laid the foundation for modern canning techniques.