改进小袋包装的蒸煮技术.pdf

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1、Improving Retort Technology forPouch PackagingScott Whiteside,Ph.D.ProfessorDept of Food,Nutrition&Packaging SciencesClemson University(USA)2025 Global Pouch ForumJune 19,2025Sheraton Sand Key ResortClearwater Beach,FLCryovacCryovac Retort LabRetort LabEstablished 2008Established 2008Thermal Process

2、ingThermal ProcessingFlexible PackagingFlexible PackagingResearchResearchProcess/Package DevelopmentProcess/Package DevelopmentFlexible PackageFlexible PackageIntegrity/EvaluationIntegrity/EvaluationSpoilage DeterminationSpoilage DeterminationShelfShelf-Life TestingLife TestingIndustry TrainingIndus

3、try TrainingRetort systemsRetort systemsAgendaAgendaBackgroundImmersaFlowTest ResultsProduct EffectsQuestionsCurrent Batch RetortSystemsBenefitsOverpressurePackage OptionsChallengesUneven temperaturedistributionExtended CUT withdense packed loadsBackgroundBackgroundImmersaFlowImmersaFlow ImmersaFlow

4、TMsystem is a closed loop waterimmersion,overpressure process.Process water is pumped from a bottomreservoir through a distribution plenum,intosolid sidewall baskets with a bottom orificeplate and returned to the bottom reservoir.Process water is forced past the product whileflow is regulated by pum

5、p speed.Specifically sized orifices in the basket bottomplate are sized to create full immersion in thebasket.Controlled water flow allows for eventemperature distribution throughout all openareas of the basket load.OperationOperation Preheat reservoir filled andheated to set temperature.Distributio

6、n plenummechanically seals againstthe basket rim.Solid sidewall baskets createa sealed pathway.Flow isregulated by pump speedand the orifices in thebottom of the basket.OperationOperation Basket bottom orifices provide flow sufficient to force the basket to fill completelyand remain full during the