Like any post-packaging process, HPP places certain demands on the materials. And the technology has its limitations: Products must contain enough moisture to transmit the pressure throughout, and as little air and/or headspace as possible—vacuum-packed products are ideal. But HPP can accommodate a range of formats, including bottles, jars, trays and flexible packs. As long as the package can flex about 15 percent on any one surface, it will withstand HPP compression.
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