Although PET bottled milk tea is also a liquid milk tea, it is not packed in paper bags, nor in cartons and paper cups. Instead, it is packed in the most popular PET bottles. It can be used to unscrew the caps, which reduces the trouble of brewing. Moreover, it has abandoned the unsanitary cans. At present, the main popular ones are Kirin milk tea, uniform milk tea and Wahaha “Kai Li†milk tea. These milk teas are packed in PET bottles. As an ordinary consumer, it is not known to ensure the aroma of tea and the fat protein content of milk. Deterioration requires a considerable level of technology, and low temperature sterilization is currently widely used. However, from the author's understanding of the level of sterilization technology, Kirin unified the low-temperature sterilization after filling, the product quality will be unstable, and Wahaha "Kai Li" milk flavor tea sterilization is carried out after sterilization at high temperature The filling, it is said that this high-temperature sterilization technology is the original creation of Mr. Zong Qinghou, the head of Wahaha, known as the "Zongshi sterilization" method. The milk-flavored tea beverage is made of ultra-high temperature sterilization and ultra-clean hot canned. The plastic bottle used is high temperature resistant PET material, which can withstand 50-55 ° C, time ≤ 72 hours hot sale conditions. Hot drinking a bottle of milky tea on a cold winter day is no longer a difficult task. The heating of the bottle will not be deformed. Like the bottle of the nutrient fast line, the PET material of the bottle is free from harmful substances, which provides scientific guarantee for the healthy quality of the milk tea after hot drinks.