Red gallbladder glass liner adopts double-layer lead-free copper-plated glass liner, and copper is plated on the outer layer of the liner, which will not contact with water and basically will not affect human health. This glass liner does not contain asbestos and will not cause harm to human health.
When there is sediment in the inner container, pour about 20 ml of white vinegar or aged vinegar into the pot, then add warm water and shake well. After standing for 10 to 15 minutes, the liner will become very clean.