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What Makes Beer Clear?

Dec. 24, 2019 Share:

Most of the brewing brewing equipment is a bit cloudy, such as wheat beer, some dark beer, cloudy IPA and so on. Some people are pursuing clear beer. Today, Brewery Equipment Factory will tell you about how craft beer equipment makes turbid beer clear.


1. Choosing the right cereal

Although medium-molecular-weight proteins improve the taste and thickness of beer, but high-molecular-weight proteins from high-protein grains (wheat, barley, oatmeal) can cause beer turbidity.

If you want to make a clear, light beer, it is best to brew it with two-row malt and light-colored malt. The sugar content can be refined sugar, corn, or rice.


2. Choose the right yeast

The flocculation of yeast means that the yeast cells gather together to form a yeast mass so that beer can be easily separated. Yeast with high flocculation will form a yeast precipitate at the bottom of the Fermentation Tank 3-5 days after fermentation starts (the fermentation temperature is appropriate).

If you choose yeast with high flocculation and fast sedimentation speed, the obtained beer will be clearer.


Fermentation Tank

Fermentation Tank


3. Pick the right hop

In order to get the strongest aroma, some brewers use low-alpha-fragrant fragrant flowers as boiled hops instead of bitter flowers. In addition to the high cost of doing so, it also introduces a large amount of polyphenols due to the addition of a large amount of hops, which affects the clarity of beer. A large amount of dry hops (especially granular hops) can also cause some turbidity. You can use hop bags to solve this problem.


4. Proper washing conditions

If the whole grain brewing is carried out, the temperature must be controlled during washing (77-78 ° C is the best). The higher the washing temperature, the more polyphenols dissolved in the wort will increase. When the washing temperature is higher than 82 At ℃, it will obviously affect the quality of beer (polyphenols not only affect the clarity, but also cause astringency).

The high pH (greater than 8) of the washing waste water will also cause a large amount of polyphenols to enter the wort. As a result, many enthusiasts will acidify their washing water to a pH below 6.0.


5.Fast cooling

After the cooking is completed, the sooner the wort is cooled from the boiling state to the fermentation temperature, the more beneficial it is for tannin and protein to form a coagulum and be deposited on the bottom of the cooking barrel. This can greatly reduce the protein and tannin suspended in the liquor.


6. Filter

Filtration is a way to directly remove suspended particles from beer / wort. Yeast cells are generally 3-20 microns in diameter, larger than proteins and polyphenols. During brewing, you can choose a suitable filter to filter according to individual needs. The filtration process before cooking can remove the hot coagulum in the wort, and the filtration after the wort is cooled can remove the condensation solids. If it is filtered before bottling, the yeast remaining in the liquor will be removed (second bottling is not possible), and finally the wine needs to be transferred into a barrel for artificial carbonization.


Brewery Equipment is a device used by a manufacturer when brewing beer. If you have any questions, please consult us!

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