What can you do with these screw top canning jars? Canning Preserve your favourite foods, from jams to tomato sauces. Keep them fresh all year long. This jar is suitable for many different kinds of canning methods such as water bath or pressure canning. Usage: • close the lid tight for canning purposes • not suitable for carbonated ingredients • for the vacuum inspection regularly check for a tight seal of the closures. Take off the steel ring and check if the platina is tight on the glass jar • clean the jars before using • steel and glass components are dishwasher safe • store pearl seals in a dark and dry environment at room temperature • before reusing the pearl seals, sterilise them for 2-3 minutes in boiling water Capacity - 1000ml Height – 180mm Diameter – 96/100mm Comes in a pack of 4 jars Capacity - 250ml Height – 80mm Diameter – 77/73mm Comes in a pack of 4 jars Capacity - 500ml Height – 130mm Diameter – 79/84mm Comes in a pack of 4 jars