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4 more PureTemp PCMs earn USDA biobased product certification

PLYMOUTH, Minnesota (January 13, 2015) – Four more PureTemp phase change materials have earned the U.S. Department of Agriculture’s Certified Biobased Product Label. The label verifies that the amount of renewable biobased material in these products – PureTemp -5, 15, 33 and 35 – meets or exceeds levels set by the USDA. 

USDA Certified Biobased Product logoThe USDA defines biobased products as finished or intermediate materials composed in whole or in significant part of agricultural, forestry or marine ingredients. A vegetable oil derivative, PureTemp phase change material absorbs thermal energy and then releases it as necessary to hold specific temperatures for extended periods of time without additional energy. It is used in a variety of products, including cooling vests, warming blankets, solar-powered refrigerators and temperature-controlled shipping containers.

Nineteen PureTemp products were designated in September 2014 as 100 percent biobased. The USDA BioPreferred Catalog lists PureTemp in two categories: phase change materials and heat transfer fluids. PureTemp has also been awarded the Federal Procurement Preference, meaning it is preferred by federal agencies and their contractors when making purchasing decisions. 

All biobased amount claims are verified by independent labs and monitored by the USDA. The agency’s goal is to provide consumers with accurate information about the amount of biobased material in products and encourage the use of biobased products.

USDA BioPreferred

The USDA BioPreferred program was created by the Farm Security and Rural Investment Act of 2002 and expanded by the Food, Conservation, and Energy Act of 2008. The purpose is to increase the purchase and use of biobased products. The U.S. Department of Agriculture manages the program. Products that meet the USDA BioPreferred program requirements carry a distinctive label for easier identification by the consumer. To learn more about the USDA Certified Biobased Product Label, visit

About Entropy Solutions

Entropy Solutions is a bio-based specialty company with offices in Plymouth, MN, and Tuscaloosa, AL. Its PureTemp PCM technology is the world’s first 100 percent renewable-based phase change material. Entropy partners with leading product development companies to deliver renewable and cost-effective thermal energy storage solutions for the shipping, construction, textile, health care and energy industries. PureTemp has received global recognition, including the DuPont Diamond Innovation Award and Presidential Green Chemistry Award. To learn more, visit

Media contacts

Ben Welter
Entropy Solutions Inc.
Office: 952-374-6416

Kate Lewis
USDA BioPreferred