Obviously, this arrangement will work equally well in keeping cold foods
cool in summer, such as ice water, or cool drinks. Even frozen creams
and ices, if packed well in a mould, covered tin pail or can, sealed and
surrounded with a small quantity of ice and salt, and the whole thus
insulated, will keep for many hours. To seal the mould, dip a narrow
strip of muslin in melted fat and lay it quickly over the crack between
the cover and mould.