The GoSun Portable Solar Oven does not require any external heating elements or power, just the sun. Simply load it up with food and relax, no monitoring required. It retains your food’s flavor and nutrition cooking from 360°, like a slow cooker, but faster. Bake, roast, steam and saute, nothing is off limits. When you’re done cooking, just keep the tray closed to keep your food hot and ready to eat for hours, no sun required. Cooks a meal in as little as 20 minutes, reaching temperatures up to 550°F (290°C) in full sunlight. Product page. Continue reading for another hands-on video review and more information.Light clouds on the radar? No problem! The GoSun Sport is so effective at capturing ultraviolet light and holding its heat, that if you can see a defined shadow, you can cook. No fire hazard here. The stove’s solar vacuum tube cooking chamber provides a near perfect layer of insulation, keeping heat in and cold out. Perfect for cooking with small children while keeping the kitchen cool during the summer. More information.