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At air ways of drying the raw materials are displayed by a thin layer (1 – 3 cm) and not less once per day overturn; at solar drying the raw materials for the night are cleaned to the room, and at shadow for the night close doors and windows of the room in which there are raw materials.

Thermal drying with artificial heating is optimum for all types of raw materials, but temperature condition for each look is various. Herbs, leaves, flowers, roots, rhizomes and bulbs dry at a temperature of 50 - 60C, fruits and seeds – at 70 - 90C, all raw materials containing essential oils - at 35 - 40C. For such way of drying it is possible to make special dryers. At their absence the raw materials are dried in ovens.

Air shadow drying is applied to herbs, leaves and flowers which under the influence of direct sunshine lose a natural color (buret), thus the amount of active ingredients from them decreases. Such raw materials are dried in well aired rooms or on attics, it is obligatory in a shadow, it is possible under a special canopy. The enclosed space can be equipped with racks with the sliding frames fitted by a grid. It is possible to dry raw materials and on gauze hammocks, suspending them on an attic between rafters. In hammocks the gauze is pulled on struts that it did not screw up the face and did not get off; hammocks are very convenient for drying as in this case the raw materials are ventilated not only from above, but also from below, and from sides therefore drying goes quicker.

Drying in the crude or badly aired room as well as overdue or premature collecting plants, can spoil raw materials therefore it is necessary to know its basic rules. There are some ways of drying of vegetable raw materials: air shadow, air solar and thermal with artificial heating.