. 1, stainless steel, ceramics, glass cup cleaning 1) white wine is scalded thoroughly with hot 60-degree white wine, and then strong tea is brewed; Put in a microwave oven, cooling naturally after 400 watts 10 minute, and pouring out after 24 hours; The smell of the cup disappears completely and can be cleaned very cleanly. 2) Soaked tea leaves are wiped with soaked tea leaves, and the effect is equally significant. 3) Vinegar Put the cup in a cold water pot and add some vinegar. It is best to brew vinegar and cook it on the fire. If the water is not enough, add one or two to two vinegar, and then boil for another twenty minutes. Be sure to put the pot in cold water. After cooking, it can not only discharge lead but also prevent cracking. Generally, newly bought ceramic cups will not crack. It's best not to buy those brightly colored ceramics. Those colored ceramics contain lead, which exists in pigments. 4) Boil in water (this method must not be used for plastic cups). When cooking in water, use cold water, but don't use cold water when taking it out, especially when the cup is easy to explode. 2. Cleaning the new teapot Before putting it into use, carefully polish the teapot with old gauze. If there is no old emery cloth, you can rub it with a new emery cloth to make the front end smaller and then grind the pot. But polishing can only be done, not too much, so as not to damage the pot surface. Then wash the mud powder and sand inside and outside, scald it with boiling water, and you can make tea. When the new pot is filled with hot tea, wipe the pot body with a clean wet cloth from time to time. After a long time, the pot body will be dark and quiet, emitting elegant light. After ten and a half months of serious use, the appearance of the teapot has been very different. The longer you use it, the more eye-catching, so the more you use it, the newer it is. 3. Cleaning plastic cups, but it is still not recommended to eat plastic cups, because plastic cups are easy to decompose harmful substances at high temperatures and are harmful to health after long-term consumption. 1) Put a few slices of lemon peel and orange peel in the cup, or drop a few drops of vinegar, and then soak it overnight. 2) When the milk is out of date and can't be drunk, you can put a rag in it to soak and wipe the cup, and the dirt will be removed soon. 3) Soaking in rice washing water for one night is also a very good method. This method is also applicable to glass, stainless steel and ceramic cups.