Contents PREFACE TO THE SECOND EDITION ACKNOWLEDGEMENTS 1 ORIGINS, GROWTH AND POTENTIAL OF DEHYDRATION Origins; Growth; Potential; Conclusions FACTORY ORGANISATION Plant location; Raw material; Labour requirements; Water; Power; Boilers; Heat raising plant; Fuels; Effluent 3 PREPARATION PLANT Cutters; Peelers; Washers; Blanchers; Conveyors; Miscellaneous and specialised preparation plant DRYERS Stove and cabinet dryers; Tunnel dryers; Through-flow batch dryers; Conveyor band dryers- single pass; Multi-pass conveyor dryers; Bin dryers; Air lift dryers; Rotary dryers; Vacuum dryers Freeze dryers; Drum dryers; Foam mat dryers; Spray drying in the dairy and food industry
Contents PREFACE TO THE SECOND EDITION 1 ACKNOWLEDGEMENTS 3 1 ORIGINS, GROWTH AND POTENTIAL OF DEHYDRATION 5 Origins; Growth; Potential; Conclusions 2 FACTORY ORGANISATION 21 Plant location; Raw material; Labour requirements; Water; Power; Boilers; Heat raising plant; Fuels; Effluent 3 PREPARATION PLANT 39 Cutters; Peelers; Washers; Blanchers; Conveyors; Miscellaneous and specialised preparation plant 4 DRYERS 65 Stove and cabinet dryers; Tunnel dryers; Through-flow batch dryers; Conveyor band dryers - single pass; Multi-pass conveyor dryers; Bin dryers; Air lift dryers; Rotary dryers; Vacuum dryers; Freeze dryers; Drum dryers; Foam mat dryers; Spray drying in the dairy and food industry V
5 DEHYDRATION OF POTATO PRODUCTS 10 Potato granules; Potato flakes; Potato cubes; Potato starch 6 DEHYDRATION OF VEGETABLES 121 Horticulture; Green beans; Beetroot; Bell peppers; Cabbage; Carrots; Chilli peppers; Celeriac; Celery; Garlic; Leeks Mushrooms; Green peas; Onions; Parsnips; Parsley, sage and leaf herbs; Spinach; Swedes; Tomato slices/flakes 7 DEHYDRATION OF FRUITS 169 Apples; Apricots; Bananas; Currants; Paw paw; Peaches; Pineapples; Pears; Plums; Raisins 8 SPRAY DRIED PRODUCTS 192 Tomato powder; Instant coffee; Freeze-drying of coffee Skim milk powder 9 DEHYDRATION OF MEAT Raw materials; Chicken granules; Beef, mutton, ham, oxtails kidneys; Typical buyer's specification 10 THE FORMULATION OF DEHYDRATED SOUP 219 Ingredients, Formulation; Additives and artificial colours 11 SELECTION, PACKAGING AND STORAGE Sieves; Selection; Electronic colour sorting; Packaging; Bulk packaging 12 QUALITY CONTROL Laboratory analytical tests; Specifications; Methods of analysis 13 THE ECONOMICS OF DEHYDRATION 52 Hours of operation; Length of season; Range of products Staff deployment; By-products and their outlets; Costing VI
5 DEHYDRATION OF POTATO PRODUCTS 105 Potato granules; Potato flakes; Potato cubes; Potato starch 6 DEHYDRATION OF VEGETABLES 121 Horticulture; Green beans; Beetroot; Bell peppers; Cabbage; Carrots; Chilli peppers; Celeriac; Celery; Garlic; Leeks; Mushrooms; Green peas; Onions; Parsnips; Parsley, sage and leaf herbs; Spinach; Swedes; Tomato slices/flakes 7 DEHYDRATION OF FRUITS 169 Apples; Apricots; Bananas; Currants; Paw paw; Peaches; Pineapples; Pears; Plums; Raisins 8 SPRAY DRIED PRODUCTS 192 Tomato powder; Instant coffee; Freeze-drying of coffee; Skim milk powder 9 DEHYDRATION OF MEAT 213 Raw materials; Chicken granules; Beef, mutton, ham, oxtails, kidneys; Typical buyer's specification 10 THE FORMULATION OF DEHYDRATED SOUP 219 Ingredients, Formulation; Additives and artificial colours 11 SELECTION, PACKAGING AND STORAGE 225 Sieves; Selection; Electronic colour sorting; Packaging; Bulk packaging 12 QUALITY CONTROL 233 Laboratory analytical tests; Specifications; Methods of analysis 13 THE ECONOMICS OF DEHYDRATION 252 Hours of operation; Length of season; Range of products; Staff deployment; By-products and their outlets; Costing Index 271 vi
