GoSun Sport Solar Oven (Open Box)

So far I have cooked roasted eggs, fried eggs with toast, hot-dogs, brownies and boiled water with my GoSun. I live in Hawaii and did my tests at noon on clear summer days. I roasted two eggs for 30 minutes. I cracked one open, it was not even soft-boiled. I left the other one in for 15 more minutes, and it was somewhat overcooked. Really, 'boiled' eggs (as they call it) are a poor choice for the GoSun because you can't tell when the egg is cooked properly. The next day, I put some butter in the tray and cracked two eggs into it, and rolled up two slices of bread. After 40 minutes and some not very graceful technique for unrolling the bread, I had some dry toast and eggs over-hard. Again, cooking was difficult because the cooking time isn't known in advance, and you can't see what you are cooking while it cooks. Overall I don't think eggs are a good example for the GoSun and don't recommend it. The next day I made some hot-dogs. This took 20 minutes, twice the time the booklet says. The hot-dogs turned out perfectly. Next, I made brownies. I used a high rated recipe for regular brownies on the internet. The brownies came out perfectly after cooking for 1 hour. The downside was they stuck to the pan and left particles in the tube so it had to be scrubbed. I should have put the batter in aluminum foil, but I wasn't patient enough to line the tubular pan. Next, I wanted to test boiling water, but I saw a video that says not to boil water directly in the tube as it wears it out. I do not have a brewing insert (can you buy one?), so I made one with a red-bull can by burning off the plastic coating. I was able to boil water after 45 minutes in the sun, but the red-bull can didn't hold enough water for a cup of tea. I also used a wireless thermometer to measure tempuratures inside the tube and food. I think this would be a must for cooking many items like meat to guarantee the food is safe to eat. I was able to get the tube up to 411 degrees while heating a rock, I think it would have gone hotter. I used a laser thermometer to measure the heat of the rock, and it was 350 degrees after about an hour. I took the GoSun out of the sun, but left it sealed and came back an hour later. The rock was still nearly 300 degrees, so the GoSun could work as a food warmer. I am not sure how many people will be able to get practical use from the GoSun stove. You need a very special use case in order to rationalize using it; for example, when flames are banned. Now, it only works at mid-day, so typically you are going to want to pick recipes that cook during the day and kept warm until eaten.