Lautering is a process of “natural filtration” during which the mash is filtered to separate the wort from spent grains, i.e. husk, solid and insoluble material. With the addition of extra water, the husks are then sparged of their extra sugars.
Among the main objectives achieved during lautering is an efficient extraction of wort from spent grains, extraction of clear wort to the kettle and minimization of oxygen pickup in the wort.
To perform the lautering operation ZIP has designed the Lauter tun that is equipped with a “false-bottom” filtering plate with defined slot shapes – it ensures the formation of the applicable filtering layer without clogging the slots with husk particles. The filtering layer is being gently loosened during the process of lautering by means of special knives; in this way the sparged husk gives away more extracts, increasing the overall wort yield.
Other features of the ZIP Lauter Tun:
- 4 pcs CIP cleaning heads, with a CIP head even under the false bottom for easy cleaning
- Full insulation
- Interior lighting
- Sight glass allows for the constant monitoring of the filtration speed and clarity of the mash
- Open door sensor and emergency stop button
- Bottom and top level sensors, which are in constant communication with the central automation system
Pump spent grain removal
Designed to hygienically remove spent grains from the Lauter tun and dispose of them, even if the site of disposal is very far from the Lauter tun. This piece of equipment does not need an air compressor, simply electricity. It can also be cleaned with the CIP, allowing for maximum sanitation.
Pneumatic spent grain removal
Spent grain is removed with the help of a special pulley, which pushes the spent grain through a plastic pipe that is intermittently pushed with high-pressure air. This set-up requires an air compressor and an air tank.