GOOD SEALING & SAFE TO STORE FOOD : Our glass jar bamboo lids all have food-grade silicone seals, which are very tight and can effectively isolate the air, ensuring that your food remains clean, dry and fresh during long-term storage; The sealing ring is designed so that you can easily open and close the lid, and you can also remove the sealing ring for cleaning; Tips: We recommend that you wash these glass airtight jars by hand and allow them to dry before continuing to use them