Dissolved in water the salts deposited on the walls of the vessels for boiling in a permanent scale, which is difficult even mechanical cleaning. However, the scale is well softened and then deleted if the capacity to put potato peelings: after boiling the precipitated salt is easily scraped off with a wooden spatula.
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AND FROST IS NOT A HINDRANCE
Using rimed with frost glass not distinguish outdoor thermometer. I took clear packing box from a toothbrush and even in the summer, stuck it on a dry glass, by placing a thermometer...
