Czech Dark Lager

the fermentation reached its plateau after 60hrs for an alcohol level between 0,4 and 1,2% ABV, corresponding to an apparent degree of fermentation about 14%. We have noted a positive correlation between final degree of alcohol and wort initial density, so we are able to say that an initial density of 7°P (1028 in specific density) is ideal to reach 0,5% ABV which is the maximum alcohol level tolerated in many countries to write “No-alcoholic beer” on the label.

f sweetness level in your final beer worries you, it’s easy to balance it with several brewing tools as Simon explains to us: “Bitterness level plays a great role and anything above 15 IBU for 0.5% ABV is a good target to balance the sweetness level. Increasing your water hardness gives a firmer bitterness too. On the cereal side, limit the use of caramel malts and the sweet flavour associated with them. To finish balancing the bill, there is of course the acidity. You can either pre-acidify your wort prior to fermentation or use greater carbonation and its associated carbonic acid which also propels aroma.”

Last but not the least, the pasteurization topic. Pasteurization is a technique invented in 1865 by Louis Pasteur for food conservation by killing all living microorganisms in the product. The process is theoretically quite simple: you heat the product between 62°C to 88°C (144 to 191°F) before brutally cooling it.