A solar oven that cooks with sunlight alone. No fuel, no batteries, no power source. The GoSun packs down to roughly 2 pounds and sets up in seconds, which is what makes it a backpacking tool rather than a backyard one.

Two foldable parabolic reflectors bounce sunlight onto a sealed glass vacuum tube. The vacuum is the reason this design outperforms a box or panel cooker: it holds heat in rather than letting it bleed back out through the walls. GoSun rates it to a peak of 550F, with a normal working range of 200F to 450F. The working range is the number worth planning around. That is enough to bake, steam and fry, and GoSun says it still cooks under cloud cover, though we would expect slower results on an overcast day.

The exterior glass and the reflector shields stay cool while the inside is at temperature, so there is no flame and no burn risk from the body of the oven. The stainless tray does get hot. Use the included hook handle to pull it.

What it holds

Cooking capacity is 12.5 fluid ounces, so this is a single meal. The tube shape suits diced food, small fish and anything you would cut down before it goes in. For steaming, add a splash of water to the chamber before the tray goes back.

Specifications

• Assembled: 14.2 inches long, 12 inches wide, 8 inches high
• Weight: about 2 pounds
• Capacity: 12.5 fluid ounces
• Peak temperature: 550F, working range 200F to 450F
• Cooking tray: food-grade stainless steel

In the box

• Tube cooking chamber
• 2 foldable parabolic reflectors
• Stainless steel cooking tray
• Scrubby cleaning tool
• Instruction manual
• Go Bag with a bubble wrap tube to protect the chamber in transit

Pack the chamber inside the bubble wrap tube every time. It is glass, and it is the one part of this oven you cannot improvise a replacement for in the field.