I purchased the kanamari400 in February 2025 and the Ti250 cup NH in 2026. I've used the kanamari400 more than 10 times for mountain climbing, but I've only used it for boiling water, and I haven't cooked any food in this cookset. It has discolored from boiling water over a campfire once, but it doesn't affect its use. The 250NH has only been tested indoors for about 2 hours, and although there is heat discoloration on the bottom, I think it's in good condition. As shown in photo 8, the 250NH can be stacked on the outside of the kanamari400. Actually, the kanamari400 is tapered, so it doesn't fit all the way in, but because of that, it fits snugly. When removing it, you can easily take it off by twisting and pulling the 250NH. If you are looking for an UL cookset, please consider this. Actual weight↓ kanamari400 43g Ti250 cup NH 25g Total 68g Product Description □kanamari400 Specifications Pot: Φ102 x 67 [mm] / 33 [g] Lid: Φ104 x 6 [mm] / 10 [g] Features This pot is made of an aluminum alloy with excellent thermal conductivity. The surface is hard-anodized for increased corrosion resistance. Cracks may occur due to the difference in thermal shrinkage between the aluminum alloy material and the anodized surface, but this does not affect functionality. Since the same crack pattern does not occur, it is a unique individual characteristic. As you use it more, the cracks will increase, so please enjoy the aging process as the item grows. □Ti250 cup NH Specifications Size: Outer diameter 93 x inner diameter 91 x depth 42mm Capacity: 250ml Weight: 25g Material: Pure titanium (made in Japan) Country of manufacture: Japan Features A handleless cup that fits in the gap between the 400-size cups such as the "Ti 400FD Cup" and the 220-size cups such as the "Ti Demitasse 220FH". It's useful for putting in snacks, dipping sauces, and sharing with friends because the wide-mouthed, shallow cup is easy to access.