Selection and maintenance of bone china cup

1. The selection and maintenance of bone china cup a. Cover the cup on the bulb (of course it can also face the light). It has strong light transmittance and soft color. 2 The whole body is milky white, the glaze is smooth, and the porcelain is light and thin. Product 3 Tap with a porcelain white porcelin dinnerware spoon or flick with your fingers, it is crisp and loud, just like a Hongzhong. b bone china maintenance: 1. Must be cleaned by hand, not dishwasher. If you really don’t want to wash it by hand, you should choose a dishwasher with 'porcelain and crystal' washing function. 2. with gold edges should not be put into the microwave oven to avoid corrosion. 3. The washing pH must be between 11-11.5. 4. When washing with clean water, the water temperature should not exceed 80°C. 5. Do not directly immerse the hot cup in cold water, so as not to damage the porcelain due to rapid temperature changes. 6. If there are scratches, you can use toothpaste to polish it. 7. If there is tea stains, it can be cleaned with lemon juice or vinegar. 8. It is best not to use it with sudden heat, so as not to explode. 9. Do not use an open flame to burn directly. 2. Technical requirements for bone china production 1. The whiteness is not less than 80%. 2. The content of tricalcium phosphate in the porcelain tire is not less than 36% 3. The water absorption rate is not more than 0.5% 4. Thermal stability: 140 degrees into 20 degrees water without cracking once 5. Weight error 5% 6 per product No more than four kinds of defects, and can not be dense.
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