I am the one who sets up a competition between coffee makers at 5 AM. The right one replaced the left. Same volume, 17 ounces. The right one is noticeably heavier with thicker walls.
At 00:06:16, the left one starts to hiss, and at 00:07:29, the water is already boiling. The right one only starts boiling at 00:09:43; those thick walls are not for nothing. It takes 2 minutes and 15 seconds longer. However, after adding coffee, the right one can be set on 30% of the stove to continue cooking, and it does not reach the boiling temperature as quickly (which is neither good for the coffee nor the stove). A scientific approach, you know?)
Hi, I'm Rauf Aliev. 