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1、 WHITE PAPER The inside story on heat treatment of particulate foods New findings from Tetra Pak January 2016 2(21)CONTENTS Introduction 3 Who is this booklet for?3 The heat transfer challenge 3 Tetra Paks expertise 3 Particles and product quality 6 What are particles and why are they so important?6

2、 Particle characteristics 6 Particle integrity 6 Particles in motion 7 The heat treatment challenge 7 Heat transfer 8 Heat transfer area 8 Particle temperature 8 Heat transfer models and predictability 9 Functions of the heat transfer coefficients 10 Particle experiments 11 Results 15 Calculation to

3、ol updates 18 Calculation tool validation 18 Implications for the food processing industry 20 Tetra Pak your processing partner 21 3(21)Introduction Who is this booklet for?This booklet is for anyone who works in the food processing industry,and who is interested in staying abreast of how particles

4、in food affect and are affected by heat treatment.It is especially relevant to those with technical responsibilities in R&D centres,as well as those with operational responsibility for processing lines and plants.It is also relevant to those with responsibility for developing new product and validat

5、ing recipes involving particles.The heat transfer challenge The primary topic we treat here is the issue of heat treatment of foods that contain particles processed in a continuous system.This is complex and makes it difficult to calculate and design the heat treatment system.New research findings f

6、rom Tetra Pak clearly demonstrate how particles affect different heat transfer processes in a heat treatment system sometimes going against commonly accepted beliefs.Findings from extensive experiments run by our expert group have revealed that it is now possible,from a thermal point of view,to calc