http://nchfp.uga.edu/how/can_01/sterile_jars.html From the NCHFP http://nchfp.uga.edu/how/can_01/sterile_jars.html Sterilize the jars/lids seven quart mason jars sterilized in boiling water prepare your jars & lids by sterilizing Sterilization of Empty Jars prepare your jars & lids by sterilizing under 10 minutes http://nchfp.uga.edu/how/can_01/sterile_jars.html