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On the Futt with the Malzherstellung the is dried i.e. and/or gedarrt. By the withdrawal of the humidity the Malz becomes storable.
The Darre consists of a close wire mesh, on which the is stacked up. From downside flowed through hot air the "heap" and extracts so the humidity from it. This happens in two indexing steps: During the first phase, the Schwelken the temperature remains relatively constant in the germ property. The heat energy is essentially spent for the evaporation of the humidity. This makes a indulgence possible of the enzymes existing in the Keimling. In the second phase, the Abdarren the temperature rises strongly and the pores in the grain closes. The height of the temperature as well as the duration of this second phase decide on the later beer color. The higher and/or longer, the more darkly the becomes.
The heating of air takes place in modern indirectly: By oil or gas burners directly warmed up air delivers heat energy over a heat exchanger to air flowing through the The Malz remains so free by the false flavours of fossil fuels. The moreover one by indirect beaconing the education is minimized by Nitrosaminen.
Before some hundred years air was heated up still directly by a wood fire and the Malz thereby was smoked. The developing smoke beer gives it in Bamberg this very day.
For some Whiskysorten the grain is gedarrt today still over peat fires, in order to obtain a erdigen, torfigen taste.
With similar drying technology also the Darren works, on which North Sea shrimps are dried. The shrimps, which are unsuitable for a peeling by hand too small and therefore for the human consumption (the so-called Gammel), become on Darren dried and afterwards to Viehfutter, in particular for chickens, converts.
| Simple Rauchdarre, which goes over two floors. The line x - y is the soil, which separates both floors. The smoke duct (A) leads into the funnel (C), on whose brick-work edge the Darrplatte is. | Hopfendarre. The fan (B) sucks warmed up air on area lying more deeply from that a floor through the hose (B) and blows it under the (A), which is covered with the hurdles (A). |
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