The DiY of the week: a parabolic solar oven to cook in summer without breaking the bank.
Unearthed on Instructables, this parabolic solar oven allows you to slow-cook tasty dishes to make the best of summer. Built with 5mm thick plywood petals covered in aluminium, the oven is 1.5 m large by 50cm deep. The larger the opening, the better the distribution end the intensity of the heat and thus the quality of the cooking.
This solar oven allows you to boil 1 litre of water in 15 to 20 minutes. To cook a dish for three people, allow 60 minutes, even 45 minutes on a very sunny day.