A CPET trays, or Crystalline Polyethylene Terephthalate trays, are a type of food packaging made from a particular kind of thermoplastic material. CPET is known for its excellent resistance to high and low temperatures, making it a popular choice for various food packaging applications.

A Yes, CPET plastic trays are ovenable. They can withstand temperatures ranging from -40°C to 220°C (-40°F to 428°F), which allows them to be used in microwave ovens, conventional ovens, and even frozen storage.

A The main difference between CPET trays and PP (Polypropylene) trays is their heat resistance and material properties. CPET trays are more heat resistant and can be used in both microwave and conventional ovens, while PP trays are typically used for microwave applications or cold storage. CPET offers better rigidity and resistance to cracking, whereas PP trays are more flexible and can sometimes be less expensive.

A CPET trays are used for various food packaging applications, including ready meals, bakery products, frozen foods, and other perishable items that require reheating or cooking in an oven or microwave.

A CPET and PET are both types of polyesters, but they have different properties due to their molecular structures. CPET is a crystalline form of PET, which gives it increased rigidity and better resistance to high and low temperatures. PET is typically used for beverage bottles, food containers, and other packaging applications that don't require the same degree of temperature tolerance. PET is more transparent, while CPET is usually opaque or semi-transparent.