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The WAPI (water pasteurization indicator) developed by Solar Cookers International


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current00:50, February 22, 2007Thumbnail for version as of 00:50, February 22, 20071,167 × 1,443 (85 KB)Tom Sponheim (Talk | contribs)Photo shows a water pasteurization indicator ready to place in a pot of water (left) and after registering water pasteurization temperature (right.
06:45, December 15, 2006Thumbnail for version as of 06:45, December 15, 2006471 × 382 (52 KB)Tom Sponheim (Talk | contribs)The WAPI (water pasteurization indicator) developed by Solar Cookers International

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