PP microwave plastic container

PP has a high heat tolerance, making it the ideal material for packaging hot food or foods that require microwaving. This is due to PP’s high melting point - PP’s operating temperature range goes up to 295°F, with a microwavable & hot fill temperature of up to approximately 260°F. In addition, PP materials are generally considered safe for re-use and can be re-heated - so for applications such as pre-made meals or takeout containers, this material is ideal.

It is important to note, however, which grade of PP you plan to use. There are three main grades of PP resin used today – homopolymer, random copolymer, and block (or impact) copolymer. Typically, homopolymer and block copolymer PP resins are better suited for high heat applications than a random copolymer. Furthermore, if the intention of the packaging is to go from a freezer to a microwave, a block copolymer will give the packaging better impact resistance a low temperatures than a homopolymer, ensuring that the packaging will not crack.

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