out, standing on a 4.5mm or 6mm hole perforated sieve. The'throughs are the smaller cut-off pieces, which are diverted for use in soups or vegetable mixes where a very quickly reconstituted product is required. With careful attention to the dicers, however, this fraction only represents about 5-10 percent of the pack-off material The main product, after screening, Passes to inspection belts for manual selection and removal of blemished pieces, which may have escaped the earlier trimming operation. Or, as is more common practice today, the dice are electronically sorted by colour sorters. These machines have reached a very high standard of performance in recent years, and one machine has the capability of sorting as much weight of product as that sorted by eight to ten women in a given time. The product should pass under and over magnets before packing The expected ratio from raw material with 20 percent solids content would be75:1to8:1 POTATO STARCH Starch is not a primary product of the dehydrator, as its production from ware grade potatoes is not by any means economically viable. Some simple means may have to be resorted to, however, to recover and process starch in a plant handling large quantities of potatoes for dehydration, solely for the purpose of relieving a critical effluent problem The release of large quantities of starch into factory effluent systems can give rise to expensive treatment bills, and one method of dealing with this is to parate out the free starch in settling tanks, and to contrive some inexpensive means of drying it. The slurry can be centrifuged to dewater it, and from that point drying can be effected by any one of several types of dryer, which may be available, but the economics will preclude this product taking any priority in the overall dehydration programme. It is convenient if any waste heat in the factory can be ducted into a simple home-engineered dryer to cope with this problem Potato starch production is, in itself, a highly specialised industry, and is only possible in areas where large tonnages of potatoes can be diverted, by giving subsidies to growers, for this purpose everal starch plants operate in America, Germany and Holland, producing a wide range of high quality specialised grades for the paper, textile, adhesive and food industries. It is not an exercise however to be recommended to the dehydrator, other than as a means to an end, and that is invariably for the Purpose of reducing effluent disposal problemsout, standing on a 4.5mm or 6mm hole perforated sieve. The ‘throughs’ are the smaller cut-off pieces, which are diverted for use in soups or vegetable mixes where a very quickly reconstituted product is required. With careful attention to the dicers, however, this fraction only represents about 5 - 10 percent of the pack-off material. The main product, after screening, passes to inspection belts for manual selection and removal of blemished pieces, which may have escaped the earlier trimming operation. Or, as is more common practice today, the dice are electronically sorted by colour sorters. These machines have reached a very high standard of performance in recent years, and one machine has the capability of sorting as much weight of product as that sorted by eight to ten women in a given time. The product should pass under and over magnets before packing. Ratio The expected ratio from raw material with 20 percent solids content would be 7.5:l to 8:l. POTATO STARCH Starch is not a primary product of the dehydrator, as its production from ware grade potatoes is not by any means economically viable. Some simple means may have to be resorted to, however, to recover and process starch in a plant handling large quantities of potatoes for dehydration, solely for the purpose of relieving a critical effluent problem. The release of large quantities of starch into factory effluent systems can give rise to expensive treatment bills, and one method of dealing with this is to separate out the free starch in settling tanks, and to contrive some inexpensive means of drying it. The slurry can be centrifuged to dewater it, and from that point drying can be effected by any one of several types of dryer, which may be available, but the economics will preclude this product taking any priority in the overall dehydration programme. It is convenient if any waste heat in the factory can be ducted into a simple home-engineered dryer to cope with this problem. Potato starch production is, in itself, a highly specialised industry, and is only possible in areas where large tonnages of potatoes can be diverted, by giving subsidies to growers, for this purpose. Several starch plants operate in America, Germany and Holland, producing a wide range of high quality specialised grades for the paper, textile, adhesive and food industries. It is not an exercise, however, to be recommended to the dehydrator, other than as a means to an end, and that is invariably for the purpose of reducing effluent disposal problems. I 20