A brewery equipment of automatic lifted rake in lauter tun

An automatic lifted rake system in a brewery's lauter tun is a mechanical solution designed to aid in the lautering process by effectively agitating and managing the grain bed during wort extraction. This technology is commonly used in larger-scale breweries to improve efficiency and consistency in the brewing process.
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Brewery,automatic lifted rake,lauter tun,lautering process,wort extraction,brewing process,mashing process,beer equipment

Here's how the system typically works:

Lauter Tun Setup: The lauter tun is a vessel where the milled grains and water mixture from the mashing process is transferred. The vessel is equipped with a false bottom or a slotted floor that allows liquid to pass through while holding back the grain husks.

Grain Bed Formation: The milled grains are spread over the false bottom to create a grain bed. This grain bed serves as a filter to separate the liquid wort from the spent grains.

Automatic Lifted Rake: The automatic lifted rake system consists of mechanical arms or paddles equipped with teeth or prongs. These arms are positioned above the grain bed.

Agitation: As the lautering process begins, the automatic lifted rake is lowered into the grain bed. The rake's arms or paddles rotate or move in a controlled manner, gently agitating the grain bed. This motion helps prevent the grain bed from compacting, which could restrict wort flow.

Wort Extraction: During the lautering process, hot water is sprayed or poured over the grain bed. The agitated grain bed ensures an even distribution of water, promoting efficient extraction of sugars and other soluble compounds from the grain husks.

Efficiency and Consistency: The automatic lifted rake's agitation prevents channeling (uneven flow paths through the grain bed) and ensures that all parts of the grain bed are exposed to the hot water, maximizing wort extraction. This leads to higher efficiency in sugar extraction and consistent quality in the resulting wort.

Adjustable Height: As the lautering process progresses, the automatic lifted rake can be gradually lifted to allow the grain bed to settle and compact slightly. This aids in clarifying the wort by trapping fine particles.

Completion and Spent Grain Removal: Once lautering is complete, the spent grains are typically removed from the lauter tun, and the wort is collected for further processing.

The benefits of using an automatic lifted rake system include improved lautering efficiency, reduced chances of stuck sparges, and enhanced wort quality. The automation of this process reduces the need for manual stirring and intervention, making it well-suited for larger brewing operations where consistency and efficiency are crucial.
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