ABSTRACT

Most published data on IR drying of foods comes from

(the former) USSR, the United States, and the East

European countries (Hallstro¨m et al., 1988). Ginzburg

(1969) described IR drying of grains, flour, vegetables,

pasta, meat, fish, etc. and showed that IR drying can be

successfully applied to foodstuffs. There are many cur-

rent industrial applications of drying agricultural pro-

duce by IR. Sandu (1986) pointed out as advantages of

IR drying in foods, the versatility of IR heating, simpli-

city of the required equipment, easy accommodation of

the IR heating with convective, conductive, and micro-

wave heating, fast transient response, and also signifi-

cant energy savings. Experimental and theoretical

works on IR drying, of opaque and semitransparent

materials (silica sand, brick, brown coal, graphite sus-

pensions and slurry of surplus activated sludge) have

been performed by Hasatani et al. (1983, 1988).