CARE INSTRUCTIONS Product Type: Heat-resistant glass / Usage: Suitable for boiling water, microwave, and oven / Heat-resistant temperature difference: 120°C / Microwave, oven, and dishwasher safe / Made in China. Do not use for purposes other than those specified. Avoid overheating in the microwave or oven, and do not heat while empty. Suitable for use in household ovens up to approximately 200°C. Do not use in ovens with direct flames. The item becomes hot during and immediately after heating; use oven mitts or similar protection. Placing the item on a table while hot may leave marks; use a mat or coaster. Be aware that freezing food inside the container may cause breakage due to the expansion of contents. Heating frozen food in a preheated oven can cause breakage; thaw food before heating. Sudden cooling can cause breakage; do not touch with a wet cloth or place on a wet surface while hot. Do not use abrasive cleansers or scouring pads when washing. Do not use if the product has cracks, chips, or scratches, as it may break unexpectedly and cause injury. Air bubbles, wrinkles, fine scratches, small inclusions, or mold marks may be visible due to the manufacturing process and material characteristics. As this product is handmade, individual variations in size, weight, capacity, and color may occur.