Material: High borosilicate glass. It is ultra-clear, ultra-light, durable, lead free, eco-friendly
Microwave and Refrigerator friendly: -20°C to +150°C
Bamboo lid/wooden lid is plastic free, BPA free, Eco-friendly and Recyclable.
The jars are 100% airtight.
When putting spaghetti or foods like it in the tall jars, avoid putting large amount at one shot, to put a bit by a bit instead.