Rotofermenter

Term (also known as rotofermenter, rototank) for a transverse drum-shaped fermentation tank, which is mainly used in red wine production. Either the tank itself or a rod with paddles attached to it is set in rotation. This mixes up the mash during fermentation, achieves a high extraction of phenols (colouring agents, pigments and tannins) and also accelerates fermentation. The carbon dioxide is released through a valve. This is an alternative to the technique of over-pumping (submerging). As fermentation takes place in a closed system as opposed to open fermentation tanks, there is no contact with oxygen. This cost-intensive system is mainly used in larger production plants, for example in Burgundy in France and in the New World.

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Rotofermenter

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