All-Season Solar Cookers: Make Your Food in Any Weather
Are there such things as all-season solar cookers, or do they only work in the summer during periods of maximum sun exposure? In the other three season of the year, we’re often asked how exactly is it that these stoves can cook so effectively, even in the cold. To answer this and other questions, we’ve created a handy FAQ. But first, a general overview. All-season solar cookers can work just fine in the winter, but it takes some ingenuity to achieve the same results as summer. As long as you have clear, bright sunshine, then you can make it work; in fact, some winter days can be bright than summer days. The only thing you really need to do differently is turn your all-season solar cooker more frequently to track the sun because it moves more quickly across the sky when it's low on the southern horizon. How do solar vacuum tubes work? Air is pulled out of a double-layered borosilicate glass tube and permanently sealed, forming a vacuum. This highly specialized process...