◆ Product Information ◆ Teapot, Heat-Resistant Glass, Direct Fire OK, with Tea Strainer, 600ml, Chinese Tea Set ※ The following is a summary of the product description from the store where it was purchased. The size information was approximate, so I remeasured and recorded it. Material: Heat-resistant glass (temperature difference resistance 120°C) Heat Resistance: -20°C to 150°C Capacity: Approximately 600ml (suitable amount 560ml) Diameter: Approximately 12cm Total Length: Approximately 20cm (including spout and handle) Height: Approximately 12cm (including lid) Mouth Diameter: Approximately 6cm Level: Grade A It is resistant to sudden temperature changes and is compatible with boiling water, direct fire, and microwave ovens. It is resistant to odor and color transfer, so it does not impair the flavor of coffee and tea. It can withstand up to 400 degrees, but low heat is recommended. However, even below the heat resistance temperature, there is a possibility of breakage if the temperature difference is large, so caution is required. When taking it out after heating in a microwave, avoid cold places and place it on a material that buffers heat, such as cloth or wood. ◆ Details ◆ I purchased this at a store specializing in Chinese tea sets a few years ago, but it has been stored away without being used. Since it doesn't seem like I'll have a chance to use it, I'm putting it up for sale as part of a decluttering effort. The product description states "Direct Fire OK," but I cannot guarantee it as I have not actually used it. There is no noticeable dirt on the box, but there are dents on the corners, overall warping, and tears in the folded part of the lid, which are likely from the time of import. Please check the images for the condition. The description paper is not included, but when I translated the content of image 18 with Google Lens, it was as follows↓ ＜High Borosilicate Glass＞ Hand-blown, high borosilicate glass with a thermal expansion coefficient of 3.3. Can withstand an instantaneous temperature difference of -20 to 150°C. High strength, pure transparency Drinking water in a glass container that is lead-free, non-toxic, and harmless is good for your health. Points to note: Glass is fragile, so do not drop it or subject it to strong impacts. It is compatible with direct fire heating, as well as electric stoves, alcohol lamps, and thermostats (not compatible with electric heating).