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Uncover the Best Materials for CPET Trays

Views: 39     Author: HSQY PLASTIC     Publish Time: 2023-04-08      Origin: Site

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Introduction to CPET Trays

CPET trays, or Crystallized Polyethylene Terephthalate trays, are an innovative solution for food packaging. They have become increasingly popular due to their versatility, durability, and sustainability. In this article, we'll dive into the world of CPET trays and explore the best materials available for their production.

Advantages of CPET Trays

Dual-ovenable feature

CPET trays are unique because they are dual-ovenable, meaning they can withstand both microwave and conventional oven cooking. This allows consumers to heat their food directly in the tray, saving time and reducing the need for additional cookware.

Freezer-to-oven convenience

CPET trays can go directly from the freezer to the oven, making them perfect for busy individuals who need a quick and convenient meal option. This freezer-to-oven capability also helps to maintain the quality of the food, as it minimizes the need for excessive handling and repackaging.

Environmentally friendly

CPET trays are recyclable, making them an eco-friendly choice for businesses and consumers alike. By choosing CPET trays, you can reduce your carbon footprint and contribute to a more sustainable future.

Choosing the Right Material for CPET Trays

Factors to consider

When selecting the best material for your CPET trays, it's important to consider factors such as durability, heat resistance, and environmental impact. Additionally, you'll want to think about the specific applications for which the trays will be used, as some materials may be better suited to particular food types or cooking methods.

Material Options for CPET Trays

PET (Polyethylene Terephthalate)

Key features

PET is a versatile, lightweight, and strong plastic that offers excellent heat resistance and durability. It is widely used in the production of CPET trays due to its ability to withstand high temperatures and provide a protective barrier against moisture, oxygen, and other external factors.


PET is ideal for a variety of food packaging applications, including ready meals, fresh produce, and bakery items. It is especially suited to packaging products that require a high level of protection from external factors, such as moisture or oxygen.

CPET (Crystallized Polyethylene Terephthal phthalate)

Key features

CPET is a specific type of PET that has been crystallized to enhance its heat resistance and rigidity. This makes it ideal for use in dual-ovenable trays, as it can withstand the high temperatures associated with oven and microwave cooking. CPET also offers excellent barrier properties, making it an excellent choice for preserving food quality.


CPET is particularly well-suited for packaging ready meals, as its dual-ovenable properties allow for seamless freezer-to-oven cooking. Additionally, CPET can be used for bakery products, fresh produce, and other food items that require a durable and heat-resistant packaging solution.

rPET (Recycled Polyethylene Terephthalate)

Key features

rPET is a more sustainable alternative to traditional PET, as it is made from recycled materials. This eco-friendly option maintains many of the same beneficial properties as PET, such as heat resistance, durability, and excellent barrier qualities. By choosing rPET, businesses can demonstrate their commitment to sustainability and reducing their environmental impact.


rPET is a suitable material for a wide range of food packaging applications, including ready meals, fresh produce, and bakery items. It is an ideal choice for companies looking to prioritize sustainability without sacrificing the performance and quality of their packaging.


In conclusion, the best materials for CPET trays include PET, CPET, and rPET. Each of these materials offers its own unique benefits, with CPET providing superior heat resistance and rigidity for dual-ovenable applications, PET being a versatile and protective option, and rPET offering an environmentally friendly alternative. Ultimately, the choice of material will depend on the specific requirements of your food packaging application and your commitment to sustainability.

Frequently Asked Questions

1. What is the main difference between PET and CPET?

The primary difference between PET and CPET is that CPET has been crystallized to improve its heat resistance and rigidity. This makes CPET better suited for dual-ovenable applications, such as ready meals that need to be heated in the oven or microwave.

2. Are CPET trays safe for microwave and oven use?

Yes, CPET trays are specifically designed to be dual-ovenable, meaning they can safely be used in both microwave and conventional ovens. Their heat resistance and durability make them an ideal choice for food packaging that needs to withstand high temperatures.

3. Can CPET trays be recycled?

Yes, CPET trays are recyclable. By choosing CPET or rPET for your food packaging, you can help reduce waste and contribute to a more sustainable future.

4. What types of food are best suited for CPET trays?

CPET trays are suitable for a wide range of food products, including ready meals, fresh produce, and bakery items. Their dual-ovenable properties make them particularly well-suited for packaging meals that need to be heated in the oven or microwave.

5. How does the use of rPET benefit the environment?

rPET is made from recycled materials, which helps to reduce the consumption of new resources and minimize waste. By choosing rPET for your food packaging, you can demonstrate your commitment to sustainability and help reduce your business's environmental impact.

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