<p><b>Canning Lids Regular Mouth</b></p> <p>Our 100 pcs canning lids are universally used for regular mouth bottles. They are made of high-quality tinplate and will not rust. The silicone sealing ring inside makes the canning lid and the jar fit more closely, suitable for sealing 70mm regular-caliber canned Mason jars containing spices,candies, biscuits, fruits, jams, soda, tea or coffee, nails, screws and other small objects. </p> <p> </p> <p><b><i>Bulk of lids save your time and money to buy more replacement. </i></b></p> <p> </p> <p><b>Features:</b></p> <p>Food grade metal lids with BPA Free silicone seals</p> <p>100% Fit for regular mouth mason jars </p> <p>100% Airtight for canning food, jams, fruits, etc. </p> <p> </p> <p><b>How to use the mason jar lids: </b></p> <p>Put the jam, pickles, fruit, salad and others you need to store in the mason bottle</p> <p>Put on our lids and screw on the ring cap (not included in our package), please be careful not to tighten it too tightly, so as to better let the air out and ensure the tightness</p> <p>Heat the mason bottle in a pot under cold water to boil 8 to 10 minutes, then take out the mason bottle and let it cool naturally. (The working principle of our product is to discharge the gas in the bottle when it is heated, and then use the principle of thermal expansion and contraction. After the gas is cooled, a negative pressure will be generated to achieve the sealing effect)</p> <p>Attention: This product must NOT be used in microwave and traditional oven. </p> <p> </p> <p><b>Package Includes:</b></p> <p>100-Count Lids (Bands NOT include)</p> <p> </p>