by N K Srinivasan
In continuation with my story of "Home-made solar funnel cooker", I would like to add my further experience. The cooking pot which is kept at the bottom of the funnel is quite critical for funnels.Since the focal line obtains as vertical line, I tried a stack of cooking containers.The middle ones heated up to high temperatures, but the top and bottom containers did not heat up so much.
I tried a cooking pot with glass lid, but no covering with plastic bag or blackening outside.The temperature reached was 140 C and the boiling of rice was achieved in a short time of about 40 minutes at 12 noon, in Bangalore--latitude 13 N.
A large container 3 quarts with glass lid is a convenient cooking pot for a funnel cooker made with 42 in x 21 in cardboard.I also cook in glass jars with limited success.
Greetings again NK,
Thank you again for your contribution, this is great information. As usual you do a great job with explaining in great detail.
I always like to receive your stories and knowledge about your solar cooking experiences.
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