Poor product. When heating the water, steam will always come out of the lid, even if the lid is tightly closed. This is a security risk. Instructions in English are not clear. It's a solid build, but what's the point if steam is escaping from under the lid and making it unsafe. I didn't fill the tank. The same behavior occurred when I poured 100ml, 150ml or 175ml of water. Very disappointed with the defective part and ask the seller to return the money. I tested the product after the return window was closed. However, this is not a safe product. Just luck, nothing unexpected happened.