Custom Mason Lids,70MM,86MM

The two-part Mason lid is a classic choice for household canning and preserving food. Made from aluminum, these lids are lightweight, durable, and provide a good seal. Aluminum is also a good conductor of heat, which is beneficial for processing jars in a water bath canner. The two-part design consists of a flat aluminum lid with a rubber or plastic seal and a screw band (also known as a clamp or ring) that holds the lid in place during the canning process.This seal helps keep the contents fresh and free from contamination, preserving the food for an extended period.While the flat lid is a single-use item, the screw bands can be reused, making this type of Mason lid a cost-effective option for regular canning.