REDUCE CO2
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REDUCE CO2
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Locher AG Brewery installs ASCO CO₂ evaporators for the brewing process and bottling

The Swiss brewery Locher AG, based in Appenzell (CH), has installed an atmospheric ASCO CO₂ evaporator (capacity 300 kg/h), which simplifies the day-to-day beer-making process. The independent craft brewery produces a wide range of bottom- and top-fermented beers, from non-alcoholic to strong beer, as well as beer-based mixed drinks. Locher Brewery’s best-known beer is ‘Quöllfrisch’.

Beer is an oxygen-sensitive drink that is produced and bottled without preservatives. For this reason, CO₂ is used as a protective gas during the brewing process and bottling. To achieve this, the liquid CO₂ is first converted into a gaseous state using an atmospheric ASCO CO₂ evaporator. To ensure that both production and bottling are supplied with sufficient carbon dioxide simultaneously, an evaporator with a capacity of 300 kg/h was installed. Beer bottles and kegs are first filled with carbon dioxide gas; this process is known as ‘pre-pressurisation’. Under counter-pressure, to prevent foaming, the beer is then filled into the bottles and kegs under this protective gas atmosphere. This low-air and therefore low-oxygen filling process ensures that the taste of the bottled beer remains stable for a long time.

 

Captions:

Logo Appenzeller Bier

 

 

Image 1 – Appenzeller Beer logo