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.
Recommend to read
CHERNIHIV PATENTS
Children in a hurry. They are in a hurry to become adults. This children's line for the purpose of education first used, perhaps, to A. S. Makarenko. He loaded the boys a real job and...
ROULETTE WITH A SPOUT
Conventional roulette is inconvenient to measure in the crevices, folds, blind grooves. I have attached the model to the usual roulette kind of spout — G-shaped bracket of sheet metal;...
