used but it is important that this should provide a consistent, regular rate of feed, compatible with the rate of throughput from the mixing plant, and proper balance must be achieved at this point. There must always be an adequate reserve of blend in the conditioning bins because, if the feed to the dryer is too fast or too slow, the whole system will break down DRYING The air velocity of the dryer must be carefully controlled from the outset, otherwise cell damage can occur here. The function of the primary dryer is to reduce, rapidly the 35-40 percent moisture in the blend to 12-l percent as the powder, which it now more correctly resembles, leaves the collectingcyclone. At this point, the powder is screened and coarse material Left: A Finex 22used but it is important that this should provide a consistent, regular rate of feed, compatible with the rate of throughput from the mixing plant, and a proper balance must be achieved at this point. There must always be an adequate reserve of blend in the conditioning bins because, if the feed to the dryer is too fast or too slow, the whole system will break down. DRYING The air velocity of the dryer must be carefully controlled from the outset, otherwise cell damage can occur here. The function of the primary dryer is to reduce, rapidly the 35-40 percent moisture in the blend to 12-15 percent as the powder, which it now more correctly resembles, leaves the collecting cyclone. At this point, the powder is screened and coarse material Left: A Finex 22 sieving machine which is ideal for potato granules or vegetable powders l lO