[Container] Heat-resistant glass Maximum temperature differential: 120℃ / 248℉ Microwave and dishwasher safe
[Lid] Cork Use only for its intended purposes. Immediately wash and dry well after use, and keep dry when not in use. Do not overheat in the microwave or heat without water. Wash with care. Don't use abrasive cleansers or steel wool. Don't place near fire. Sudden temperature changes may break or shatter the product. While the glass is hot, don't pour cold liquids into it and don't place it to on a wet cloth or in a wet sink. Be aware that the lid may become stained with the odour or colour of some foodstuffs. Product size and shape varies in each item due to manufacturing process. Do not hold by the lid when carrying, as the container might fall and break.