BioSteam from Rockwell Solutions is a PLA-based self-venting steamer pouch for steam cooking in the microwave. It is compostable, sustainable, heat sealable and peelable against itself post microwaving. It is a glass clear PLA-based film derived from corn startch and is available as rollstock or as pre-made pouches.  The material can be used in chilled or frozen conditions, making it suitable for steaming frozen vegetables, proteins and carbohydrates.

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