Fill and Seal Jars: Steps 2 - 3
2 Release air bubbles in chunky mixtures: Gently run a plastic knife around inside of jars. Wipe jar rims and threads with a clean, damp cloth
so that lids will seal.
3 Center lids on jars so the sealing compound on lids touches jar rims. Screw metal rings on firmly, but don’t force.