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Old 14th October 2020, 10:59
Malcolm G's Avatar
Malcolm G Malcolm G is offline
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Egg shells are part of the mix in 'camp-fire' coffee. As is salt, but I don't think you are supposed to use both.
When coffee is boiled with loose grounds, as opposed to percolating, it has a very bitter taste which the egg shells are supposed to reduce.
Something to do with the pH balance.
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