Glass Graduated Mason Jars with Threaded Caps
Mason Jars are ideal for fresh preserving recipes such as salsas, syrups, sauces, fruits and vegetables. Jars have a rounded square shape and are debossed on adjacent sides with "MASON" and graduation marks. FDA approved. Not intended for microwave use. Mason jars include a one-piece screw top cap with plastisol liner.
Max Filling Temperatures: Recommended for hot fill <190 degrees F. To avoid breaking the jar, do not change the temperature faster than 100 degrees F per hour.