After hot pot to boil water, he will have a similar rice cooker electric heat preservation function, (such as setting up to 90 degrees c) do not know whether the heat preservation function.
But according to the experiment proved that if the repeatedly boiled water, can make the water "nitrate" into a "nitrite, and nitrite" will make human body inside of haemoglobin into nitrosyl hemoglobin, red blood cells lose their ability to carry oxygen. So if often repeated drinking boiled water, may be the cause of hypoxia, shortness of breath, chest dull, lips and nails appear purple, or the phenomenon such as easy to love trapped. If more serious, "nitrite" into the body, after gastric acid, is likely to convert carcinogenic nitrosamines
Second, when the bubble in milk or bubble surface, directly take thermos again in the warm water to boil, then brew. This kind of practice, seems to be in line with the economic benefit, can save fees by the cooking time, at the same time also can achieve the utility of gas and water saving.
In fact, most of people may have a common experience, when you are in the process of cooking noodles or boiled soup, wait until almost cooked, only to find that the soup is too little, or broth is too salty, can combine the hot water, so as to achieve add sufficient water or dilute salt in the soup.
Water cannot be repeated to burn, will produce nitrous acid salt, is a carcinogen, so for the sake of your health, don't again and again to boil water. But to boil water in a fixed temperature and not let it boil.
