Why should wort be boiled?
In the processes of mashing, lautering, boiling, whirlpool, cooling and fermentation of beer brewing, boiling is the most easily overlooked. Except for pitching hops, it seems that we can only watch the wort roll in the kettle during the boiling period.
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However, boiling is a very important part of the brewing process.
At this stage, high temperature will deactivate the enzymes, hops will be added for isomerization of a-acid, removing thermocoagulables and volatile flavors is also important.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
Optimize the boiling process can reduce heat energy consumption, shorten wort boiling time, and speed up equipment turnover etc.
Therefore, in the boiling process, it is not only simple to add hops, but also pay attention to the boiling time of the wort, the boiling method, the control of evaporation strength and the boiling strength etc. To optimize the boiling process, we need to know about the purpose of wort boiling.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
Let’s have a review about them (7 points):
micro brewery equipment, beer brewing system, beer making machine, microbrewery
1. Evaporation and concentration of wort
micro brewery equipment, beer brewing system, beer making machine, microbrewery
In the mashing and lautering process, the addition of additional water maximizes the extraction and recovery of the sugar. The boiling process evaporates this portion of the water to achieve the target wort original gravity (OG).
The main factors determining the final OG are the initial specific gravity and the time of boiling.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
The longer the boiling time, the higher the final OG.
2. Enzyme inactivation
Boiling can terminate the mashing process that converts the starch into sugars. It may be said that the most important purpose of wort boiling is to inhibit the activity of residual enzymes after the mashing process.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
Inhibiting the activity of the enzyme maintains the desired sugar/dextrin ratio.
If any enzyme catalysis continues, it will produce "thin" beer with very poor taste characteristics.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
3. Wort sterilization
micro brewery equipment, beer brewing system, beer making machine, microbrewery
Wort is essentially a nutrient-rich sugar liquid.
It provides an ideal environment for (harmful) bacterial growth. All bacteria in the wort grow wildly and it will pollute the beer.
A 15 minute boiling time is enough to kill almost all types of bacteria.
At the same time, hops have natural bactericidal properties that inhibit bacterial growth to a minimum.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
How do you think of that?
The remain points will be discussed in the next article.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
Edit by Jane
Shandong Grain Machinery Co., Ltd.
Shandong Tiantai Beer Equipment Co., Ltd.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
However, boiling is a very important part of the brewing process.
At this stage, high temperature will deactivate the enzymes, hops will be added for isomerization of a-acid, removing thermocoagulables and volatile flavors is also important.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
Optimize the boiling process can reduce heat energy consumption, shorten wort boiling time, and speed up equipment turnover etc.
Therefore, in the boiling process, it is not only simple to add hops, but also pay attention to the boiling time of the wort, the boiling method, the control of evaporation strength and the boiling strength etc. To optimize the boiling process, we need to know about the purpose of wort boiling.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
Let’s have a review about them (7 points):
micro brewery equipment, beer brewing system, beer making machine, microbrewery
1. Evaporation and concentration of wort
micro brewery equipment, beer brewing system, beer making machine, microbrewery
In the mashing and lautering process, the addition of additional water maximizes the extraction and recovery of the sugar. The boiling process evaporates this portion of the water to achieve the target wort original gravity (OG).
The main factors determining the final OG are the initial specific gravity and the time of boiling.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
The longer the boiling time, the higher the final OG.
2. Enzyme inactivation
Boiling can terminate the mashing process that converts the starch into sugars. It may be said that the most important purpose of wort boiling is to inhibit the activity of residual enzymes after the mashing process.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
Inhibiting the activity of the enzyme maintains the desired sugar/dextrin ratio.
If any enzyme catalysis continues, it will produce "thin" beer with very poor taste characteristics.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
3. Wort sterilization
micro brewery equipment, beer brewing system, beer making machine, microbrewery
Wort is essentially a nutrient-rich sugar liquid.
It provides an ideal environment for (harmful) bacterial growth. All bacteria in the wort grow wildly and it will pollute the beer.
A 15 minute boiling time is enough to kill almost all types of bacteria.
At the same time, hops have natural bactericidal properties that inhibit bacterial growth to a minimum.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
How do you think of that?
The remain points will be discussed in the next article.
micro brewery equipment, beer brewing system, beer making machine, microbrewery
Edit by Jane
Shandong Grain Machinery Co., Ltd.
Shandong Tiantai Beer Equipment Co., Ltd.
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