A Mason jar is a glass container designed for preserving food. Invented by John Landis Mason in 1858, it features a screw-on lid that creates an airtight seal, making it ideal for canning fruits, vegetables, and other foods. The jars come in various sizes and are often used for storage, crafts, and DIY projects. These jars are popular for their versatility and durability. They can be reused multiple times, making them an eco-friendly option for food storage. Additionally, Mason jars have gained popularity in recent years for trendy uses, such as serving drinks or as decorative centerpieces.