Article List
- Fundamental changes during wort boilingThe wort after mashing and filtration needs to be boiled for 1-2 hours, and a certain amount of hops is added during the boiling process. The bitterness and aroma substances in the hops can be dissolved into the wort by boiling to give the beer a refreshing bitterness and a pleasant aroma. The boiled wort is called finalized wort.
- Dissolved Oxygen Control Measures in Saccharification Production ProcessDissolved Oxygen Control Measures in Saccharification Production Process1. Closed manholes should be used for paste (sugar) pots, filter tanks, and boiling pots; during the production process, the entrance doors should be closed as much as possible and less opened, so as to minimize the inhalation o
- Oxygen Avoidance Measures During Fermentation and Filtration of LiquorOxygen Avoidance Measures During Fermentation and Filtration of Liquor1 Oxygen intake is strictly prohibited during the wine serving process of the fermented liquid and the post-storage period of the wine, and a stable CO2 wine storage pressure and a low wine storage temperature are maintained.
- Beer brewing water（3） - treatment method of beer brewing waterBeer brewing water - treatment method of beer brewing waterTreatment method of beer brewing water1. Boiling methodPrinciple: Make the bicarbonate or magnesium dissolved in the water form insoluble calcium carbonate or magnesium precipitate to reduce most of the temporary hardness in the water.
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- Beer Brewing Water (1)Water is the main raw material in beer brewing. Brewing water is called "the blood of beer", and generally includes saccharification water and water for washing wheat grains. The characteristics of world-famous beers are all determined by the water quality of their respective brewing water.
- The importance of polyphenols in beerPolyphenols in beer mainly come from barley and hops. About 80% of them come from barley and 20% from hops. The phenols in barley are about 0.1% ～ 0.3% of its dry weight, mainly distributed in wheat husk, aleurone layer and endosperm. With the dissolution of malt in the process of malting, it is free and brought into wort and beer through the saccharification process. Phenolic substances in hops account for 4%~10% of the dry matter, mainly distributed in the bracts and rachis of hops.
- About those flavor substances in beerBrewing a high-quality beer is not so easy, because there are always some unavoidable interference factors in the brewing process, which will make the beer have one or another flavor defect. Therefore, understanding the various flavor defects of beer and their causes will help us to effectively control them during brewing, thereby avoiding or reducing their occurrence.
- How to identify the boiling state and effect of wort in the brewing process?In the second half of the wort boiling or before the end, take a sample of 250-300ml with a clean triangular flask, put it in the saccharification room at room temperature, cool down to room temperature, observe the wort in the triangular flask, there should be flocs at the bottom of the bottle Or muddy precipitation, the wort in the bottle is evenly distributed with a large number of aggregates, which can be flake, flocculent, etc. The wort is basically clear and transparent, and the smell of the wort has a refreshing hop aroma and malt aroma, and there is no other foreign smell , tasting with obvious sweetness, bitterness and malt smell. Then place the triangular flask in a refrigerator at about 10°C overnight (or for more than 12 hours), and observe the change of the turbidity of the wort.
- Basic cleaning operation process of CIP systemFirst water rinseThe first water rinsing is also called "pre-washing". It is mainly to wash away the material residues and viscous liquids in the cleaned equipment, containers, and pipes as much as possible, so that as little as possible enters the washing (liquid) tank.