Solar Cooker Pasteurizing Water with WAPI 2

energyideas
energyideas
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Published 2019-01-09
A water pasteurization indicator (WAPI) is $0.22 of material including special wax that melts when in water for long enough and hot enough to pasteurize the water, about 5 minutes and 165 degrees F. It can be used over and over, wax melts and flows to the bottom. Turn it over and use it again. A simple way to provide safer drinking water. [email protected] Updated from the original video.
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