The frugal housewife; or, experienced cook : wherein the art of dressing all sorts of viands with cleanliness, decency, and elegance is explained in five hundred approved receipts ... / originally written by Susanna Carter, but now improved by an experienced cook in one of the principal taverns in the city of London.
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Rules for Brewing.
When Beer has turned Sour.—To a kilderkin put in at
the bung a quart of oatmeal, lay the bung on loose two
or three days, stop it down close, and let it stand a
month. Some throw in a piece of chalk as big as a
turkey’s egg, and when it has done working, stop close
for a month, then tap it.