BPA Free & Food Safe - the glass jars are made of high quality thick glass which is Non-toxic. Leak Proof and Airtight - each small glass jars has a Pretty black sealed lid so they are also ideal for storing food. Cute size is very convenient to carry. Perfect for Skincare, Massage Oils, Herbs and Spices etc. Dishwasher & refrigerator safe – remove lid before dishwasher use. Do not freeze, microwave, or oven. Multiple Uses - suitable for homemade yogurt, milk, parfait, pudding, jello, jam, honey, desserts and so on. Danmu Art aims to provide the best service to our customers, please buy with confidence !