The PPT temperature is 130 degrees, such as common soybean milk bottles, yogurt bottles, fruit juice bottles and microwave lunch boxes. It can withstand the high temperature as high as 130℃, and it is the only plastic box that can be put into the microwave oven and can be reused after careful cleaning. It should be noted that some microwave lunch boxes are made of No.5 PP, but the lid is made of No.4 PE. Because PE can't withstand high temperature, it can't be put into the microwave with the box.