From the manufacturer

NEW & IMPROVED! Blistering boil times come standard on our industry-leading Flash 1.0L Fast Boil System. This means enjoying a cup of coffee or a hot meal at camp just got that much easier. Jetboil's 1.0L FluxRing cooking cup with insulating cozy makes boiling water—and keeping it hot—a breeze. Start heating instantly with the new turn-and-click igniter and verify that the water's ready with the thermochromatic heat indicator. From backpacking to car camping, and every adventure in between, Flash boils in seconds so you can fuel up faster.

• Lightning Quick Boil
  You'll spend less time waiting and more time enjoying hot meals and beverages on your adventure.
• Easy-To-Use
  Remove the guesswork with an intuitive turn-and-click igniter and a color-change heat indicator to let you know when it's boiling
• Compact & Packable
  Quick to set up, quick to pack up. Jetboil systems nest into the cooking pot, making storage and transport a breeze.
• Ultra Efficient
  Boil water faster and burn less fuel thanks to the patented Jetboil FluxRing heat exchanger.

Features

• New turn-and-click ignition, just like your home stove
• New colored grip zone provides easy and intuitive handling
• New cozy designs for the 2025 Flash 1.0L
• Improved pot to burner connection with three locking points and visual indicators
• Boil water in a lightning-fast 120 seconds to enjoy your morning cup of coffee or dehydrated meals with less waiting
• Everything packs neatly into the cooking cup, saving pack space and keeping your gear organized
• FluxRing technology allows Flash to heat with extremely high efficiency, consuming less fuel
• Bottom cover doubles as a measuring cup and bowl so you can pack less and still enjoy great meals on the trail
• Compatible Accessories: Silicone Coffee Press, Hanging Kit 2.0, Pot Support 2.0. Additional cookware can be used with Pot Support 2.0, like the Summit Skillet and 1.5L Ceramic Cook Pot