其实，隔夜不是问题，放置时间过久才是问题。久存的水，虽不至于亚硝酸盐含

In fact, overnight is not a problem, leaving it for too long is the problem. Although the long-standing water will not exceed the nitrite content and cause cancer, it may deteriorate. <br><br>Therefore, it is best to drink the water as soon as possible after boiling, and do not leave it for more than ten or twenty hours. Use sealed containers during storage to prevent the growth of bacteria. <br><br>The same is true for overnight tea. As long as there is no deterioration, it will not hurt the body after drinking.

In fact, overnight is not a problem, too long to place is the problem. Long-standing water, although not nitrite content exceeds the standard, carcinogenic, but may deteriorate.<br><br>Therefore, the water boiled after the best as soon as possible to drink, do not put on a dozen or twenty hours. Use an airtight container for storage to prevent bacterial growth.<br><br>Again, overnight tea is the same. As long as there is no deterioration, drinking will not hurt the body.

In fact, overnight is not a problem. It's only a problem if it's placed too long. Long standing water, although not as nitrite content, carcinogenic, but may deteriorate.<br>Therefore, it's best to drink the water as soon as possible after it's boiled, instead of putting it on for more than ten or twenty hours. Sealed containers shall be used for storage to avoid bacteria growth.<br>The same is true of overnight tea. As long as there is no deterioration, drinking will not hurt the body.