Pierino Frozen Foods, Inc. (Lincoln Park, MI) is one of the first prepared foods processors to harness new cryogenic ‘rolling-wave’ technology to individually quick freeze (IQF) gourmet pasta. The Messer Wave Freezer, patented by Messer (Bridge- water, NJ), uses a proprietary rolling- wave action to keep IQF products separate as they freeze. The rolling wave agitates the moist pasta items on the belt to keep them from sticking and to improve the flow of cryogen around the product. The result is more rapid heat transfer, much higher throughput, and lower operating costs than is possible with a similar-sized tunnel freezer. The cryogenic freezer, which can use either liquid nitrogen or carbon dioxide (CO 2 ), also avoids the snow buildup associated with other types of cryogen

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