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Classic
Cook Books
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page 315
strain and put up as before, thus obtaining a weaker substance. Proceed
similarly a third time, but when the horn becomes soft enough to crush between
the lingers it has lost all strength.
To make potato flour.
Take large potatoes. Wash them well. Tie a sheet over a large tub or other
wooden vessel and grate the potatoes over it. Now and then put some water on the
sheet, stirring it so that the flour goes through the sheet. Continue thus as
long as there are any potatoes left, always seeing to that the flour goes
through, to which end sprinkle water on the sheet quite often. Fill the vessel
nearly to the brim in this way, and after that let it stand about an hour for
the flour to settle. Then bale out the dark water and replace it with new water,
until the vessel is half full. Keep on charging water this way until it becomes
clear in the vessel. Each time a change is made, which ought to be
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