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HOW TO CLEAR ICE FROM ICE

In a warm solution of table salt or alum (per 1/2 liter of water a handful of salt), a sponge or a soft brush is also wetted over it through the frozen glass , causing the ice to melt . At what time the ice crust will disappear, you need to wipe the glass dry. Better yet: rub glass with a solution of calcium chloride - the ice melts about instantaneously.