After all, people were preserving food for thousands of years before you had to keep that leftover takeout from stinking up your college dorm.
Done. You’re ready to store food inside. Just remember to add water to the sand every day, because zeer pots use evaporation to cool food. These pot-in-pot coolers are useful in places that don’t have power grids, but they’re also great for people who don’t have fridges, need more space, or want to cut their energy bills. On that last point: they’re also much better for the environment since they don’t require any sort of fuel, much less oil or gas.
They work well in Sudan, where Practical Action has introduced the zeer pot to many in need of refrigeration.
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