How-to Prepare Jars and Caps for Canning
Wash jars and caps in hot, soapy water; rinse thoroughly. Dry bands on a towel. Put jars in a large kettle with enough water to cover by at least 2 in.; boil for 10 minutes to sterilize. Turn off heat, but leave the jars in the water until they’re ready to be filled. Place lids in a separate small saucepan and cover them with water; bring water to 180° and simmer for 10 minutes. Remove from heat until ready to use.