Blanched versus unblanched - most notable difference in green beans and sweet corn. More palatable, sweet, and tender when blanched. One of my first forays into drying food was to make "leather britches" where you take a needle and thread and string up green beans to hang and dry. The name should have been a clue as they were about as edible as leather britches - maybe if you were starving you might want to eat them. If you're not convinced, you need to experiment on a small scale before committing big batches. As for using our dryer design in other climates, you can permanently tone down the efficiency by using a paint color other than flat black. Dark blue or brown works too. But rather than making this a permanent "fix" I suggest using shading over the glazing that can be removed when conditions like cloudy weather would warrant the full heat output of the collector. A sheet, cardboard or window screening can be placed over all or part of the collector as needed to reduce the heat input. You will still have the passive air flow through the slightly tilted unit as hot air will still rise and draw off moisture. No sun on food, rain no problem, critters kept out. Having the screens in a single layer, not stacked, makes solar drying more possible in all climates as you're not trying to move moist air through multiple layers of screens/food. As for burnt or carmelized foods, that is also possible here in the midwest. We've had it happen with sweet corn, tomatoes, and even melon. The first time it happened I thought the corn was ruined, but found that in some recipes the carmelized flavor was an additional bonus. And for tomatoes, a little blackening gives the flavor of roasted tomatoes without the effort and energy inputs. Really nice added to chili along with some of the carmelized corn. The melons are still edible with a different flavor profile. Not sure if I would strive for this outcome with melons but putting very sweet foods in the "lower" trays, positioning dryer off the north-south axis (face to the south east), or using shading, reduces the chances of this happening on extremely hot days.