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A drying oven is used for various purposes, including drying flowers and food, sterilizing laboratory equipment, and producing snack foods, ceramics, rubber, and plastics. Archaeological sites have uncovered ancient drying kilns.
A drying oven is a device for long-term application over low heat of a variety of objects for a variety of purposes. Some kitchen ovens have an option for one. This allows you to use an appliance mainly for cooking for drying flowers, as well as for dehydrating food to extend shelf life. A dedicated drying oven is often used in the food industry to create snack foods such as pretzels, bagel chips, crackers, extruded corn products, and potato chips.
Another use of the drying oven is sterilization and drying for laboratory equipment, such as glassware. Features may include forced convection, adjustable ventilation, and a digital timer. Air circulation can be achieved with a fan or turbine. Convection drying ovens can also be used for thermal testing, heat storage, evaporation and heat treatments. Larger models may include conveyor belts.
The use of the drying kiln with ceramics is twofold. For one thing, they are an essential part of the commercial production of a wide range of products, including sanitary ware such as toilet bowls, sewer pipes, tile, glass and porcelain. On the other hand, the pottery kiln, used for both built and cast pottery, is another type of drying kiln, found in many potters’ studios and in a number of art departments.
Chemical manufacturers use two types of drying ovens: continuous dryers and batch dryers. In this industry, furnaces are used for sludges and stearates, among other compounds. They are also an important component in the production of chlorine gas. Curing of rubber and plastics also takes place in a drying or curing oven.
Archaeological sites have brought to light these types of ovens used in the past. An archaeological dig at Much Wenlock, Shropshire, England in 2006 by Archenfield Archeology Ltd. uncovered a malt drying kiln which may have been abandoned due to the Black Death. Another was found at Raunds, Northamptonshire, England in 1980, and a malt kiln was excavated at Great Linford, Milton Keynes, England in 1978.
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