Abstract
The results of comparative tests of a polyethylene film and a film-ceramic composite of sun-dried grapes are presented. A film-ceramic composite based on polyethylene and functional ceramics allows deeper and faster drying of products compared to conventional polyethylene film. The film-ceramic composite, other things being equal, makes it possible to achieve a commercial degree of drying of grapes almost 1.5 times faster. When drying grapes, the faster drying rate is most likely determined by the deeper penetration of the pulsed radiation generated by functional ceramics. Conventional polyethylene film without functional ceramics completely degraded in about 2 months. The film-ceramic composite did not change at all during the year.
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