Canning jars

Canning jars are specialized glass containers designed for preserving food through heat processing. They typically feature a secure, airtight lid composed of a flat metal disc with a rubber or silicone seal and a screw band to hold the lid in place during processing. This airtight seal prevents contaminants and spoilage, allowing food to be stored safely for long periods. Canning jars are commonly used for home preservation of fruits, vegetables, jams, and pickles, and their durability and reliable sealing make them a popular choice for individuals interested in preserving their own food.