Food for Good program participants

No refrigeration? No problem

PepsiCo established the Food for Good program in 2009 to deliver meals to kids in underserved neighborhoods during the summer. But the expense of refrigerated trucks limited the program’s reach. In 2010, PepsiCo began working with Entropy Solutions to find a solution. Together they created the Cold Box, an inexpensive and reusable container that keeps food at a safe temperature for hours without refrigeration. It’s powered by PureTemp. Read more

Photo: The first Cold Boxes were field-tested in 2011. It performed well in record heat that summer, and its use has expanded each year since. - courtesy PepsiCo Food for Good

Phase Change Matters

Meet PureTemp 7, our newest biobased PCM

With a melt point of 7º Celsius and a heat storage capacity of 185 joules per gram, PureTemp 7 is designed to fully solidify in a refrigerator, making it suitable for use in freezer-less settings. The new product will be available in December. Read more


Here's how phase change material works.

Company News

Entropy blog, newsletter win national awards

The Phase Change Matters blog and newsletter, which track the latest news and research on phase change material and thermal energy storage, won top honors at the 2015 Digital PR Awards announced in New York this week. Read more