Paper cup is a kind of paper container made of chemical wood pulp (white cardboard), which is processed and bonded, and its appearance is cup-shaped. The paper cups of frozen food are waxed and can hold ice cream, jam and butter. The surface of the paper cup used to heat drinks is coated with plastic, which can withstand the high temperature above 90℃ and even hold boiling water. Paper cups are characterized by safety, hygiene, portability and convenience. Can be used in public places, restaurants and restaurants, and is a disposable product. Paper cups: In China, we usually call cups made of paper materials "paper cups". Our country requires that the production management of paper cups has been upgraded to the food level, so it is required that all paper cups sold in the market must have QS quality and safety production license, and the license number can be found on the website of the State Bureau of Quality and Safety Supervision. Paper cups are divided into single-sided PE coated paper cups and double-sided PE coated paper cups. Single-sided PE coated paper cups: Paper cups made of single-sided PE coated paper are called single-sided PE coated paper cups (common market paper cups in China, most advertising paper cups are single-sided PE coated paper cups), and their manifestations are as follows: there is a smooth PE coated paper cup on the side of the paper cup holding water; Double-sided PE coated paper cup: A paper cup made of double-sided PE coated paper is called a double-sided PE paper cup, which is expressed as follows: both sides of the paper cup are coated with PE. Paper Cup Size: We use ounces to measure the size of paper cups. For example, 9-ounce, 6.5-ounce and 7-ounce paper cups commonly used in the market. Oz: Oz is a unit of weight. Here stands for: 1 oz is equivalent to the weight of 28.34 ml of water, which can be expressed as: 1 OZ)=28.34 ml)=28.34 g (g) Usually, the commonly used paper cups include disposable paper cups, advertising paper cups, reception paper cups, beverage paper cups, milk tea paper cups and tasting cups.