The Iwatani Junior Compact Burner (model CB-JCB) is a tiny but mighty portable stove. It's perfect for camping, picnics, tailgating, or even as a backup burner in your kitchen during power outages. Japanese-made and known for reliability.
Its big selling point is the size. When open for use, it's about 6.1 x 6.1 x 5 inches. When you're done, it folds down even smaller to roughly 3.2 x 2.7 x 4.2 inches for easy packing. It weighs less than 10 ounces! It literally fits in the palm of your hand.
It runs on standard butane canisters (the ones you see for portable stoves). The compact design makes it super stable for a small pot or pan. It's great for boiling water for coffee, heating up soup, or cooking a simple one-pot meal outdoors.
The included manual is in Japanese, but the operation is intuitive: snap on a gas canister, turn the knob, and light it (it likely has a piezo ignition, but check specs).
If you need a minimal, ultra-portable cooking solution that doesn't take up any space in your backpack or car, this Iwatani burner is a classic, well-regarded choice. Simple, effective, and incredibly compact.