Malting prepares barley for brewing. The barley is steeped in water, allowed to germinate and is then kilndried in carefully controlled conditions. During this process starches in the barley are made accessible, and enzymes are formed which convert starch into simple sugars during the subsequent brewing process. The selection and blending of different
malts – pale, crystal or roasted – contribute to the ultimate flavour, body, colour and aroma of the beer.
During mashing, ground barley malt and selected maize are combined with specially conditioned water, creating a thick mixture called “the mash”. A specified heating programme continues the conversion of starches in the mash into simple sugars.
Varying the time and temperatures in the mashing programme influences the body and colour of the beer and determines the potential alcohol content. The addition of maize enhances drinkability.
The mash is transferred to the lauter tun, which acts as a giant sieve and filter, separating the rich fermentable liquid “wort” from the solid grain. As the liquid drains off the grain, it is sprayed by hot water to recover the maximum amount
of fermentable sugars.
The wort is brought to a controlled boil to balance the ingredients precisely. Hops are added. The type and quality of
hops, and the timing of their addition to the boiling wort, determine the distinctive bitterness and hop aroma of
the beer. After boiling, the solids are separated and the wort is cooled.
Fermentation / Maturation / Filtration
Selected brewer’s yeast is added to the cooled wort, initiating the fermentation process under controlled temperatures. During fermentation, yeast converts the sugars in the wort into alcohol and carbon dioxide.
This young beer is then transferred to even colder storage vessels, where it matures. After reachi ng its full potential, the beer is filtered, carbonated and transferred to the bright beer tank .
Perhaps the most important determinant of beer character is the living yeast. Brewers, therefore, give great attention to the integrity and vitality of their own yeast strains.
Because beer is best When is fresh, it is packaged ill, quickly and efficiently a, possible on high-speed line, in kegs, bottles or cans. Kegged beer, which is either micro-filtered or flash pasteurized, is delivered to customers for consumption as draught beer. The bottled and canned beer, which is more widely distributed is pasteurized during packaging to ensure a longer shelf life.