This article explores the history of mason jars and how they have become a prime example of a product that embraces circular principles. The jars’ durability, reusability, and versatility have ensured their longevity and continued relevance in modern times, making them a beloved and iconic household item.

In the early 1900s, food preservation was a major concern for households as people relied on canned goods, which were often low quality and sometimes contained harmful chemicals. Additionally, the canning process was complicated and required specialized equipment.

The Mason jar was invented in the 1850s by John Mason as a solution to these problems. The jar was made of glass, which ensured the purity of the food inside and made it easier to see the contents. The jar also had a threaded top, which allowed for a metal lid with a rubber seal to be screwed on, creating an airtight seal that prevented bacteria from entering.

Today, Mason jars are still widely used for canning, but they have also become popular for a variety of other purposes, including as drinkware, vases, and even lighting fixtures. The Mason jar is a great example of a product that solved a problem and became an enduring cultural icon. Whether it is used for food conservation or customisation purposes, it's important to reuse already produced jars, instead of buying new ones, to really embrace circular principles.

The Mason jar became an immediate success and revolutionized food preservation. People could now easily and safely can their own food at home, ensuring that they had access to high-quality, safe food all year round. The jar also became a symbol of homesteading and self-sufficiency, and its popularity continued to grow throughout the 20th century through multiple different purposes.

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