The function of agitator for dairy fermentation tank
- Sep 17, 2026
- 105
- tiantai
A dairy fermentation tank is a stainless-steel processing vessel used to ferment milk or milk-based products with starter cultures such as lactic acid bacteria. It is commonly used for producing yogurt, drinking yogurt, probiotic drinks, cultured milk, kefir, and other fermented dairy products.
The agitator in a dairy fermentation tank is mainly used to keep the product homogeneous and ensure uniform fermentation conditions throughout the tank. The main functions of agitator includes:
1. Uniform temperature distribution
During fermentation, the product needs to stay within a relatively narrow temperature range. The agitation prevents temperature gradients between the top, middle, and bottom of the tank.
This is particularly important when the tank has a jacket for heating or cooling.
2. Uniform distribution of bacteria
For yogurt and probiotic products, starter cultures or probiotic bacteria need to be evenly distributed. Gentle agitation helps maintain a consistent bacterial concentration throughout the tank.
3. Prevent sedimentation
Some dairy products contain proteins, minerals, fruit particles, or other suspended solids.
Agitation helps prevent these materials from settling at the bottom.
4. Improve heat transfer
Agitation continuously moves the product across the tank wall. This improves heat transfer between the product and the heating/cooling jacket and makes heating or cooling faster and more uniform.
5. Maintain product consistency
For products such as drinkable yogurt, probiotic drinks, and cultured milk, agitation can help maintain consistent viscosity and composition.
The agitation should usually be gentle, for dairy fermentation, high-speed agitation is generally not desirable. Excessive shear can:
- Damage the structure of the fermented product
- Reduce the desired yogurt gel structure
- Cause excessive foaming
- Introduce unnecessary air/oxygen
- Affect the final texture
So the agitator is normally designed for low-speed, gentle mixing.
Tiantai, provides turnkey solutions on brewery equipment, winery equipment, beer equipment, cider equipment, kombucha equipment, distiller equipment, dairy production line. If you are looking for dairy fermentation solutions, we are at your disposal anytime.
Derrick
Sales Manager
[email protected]
Tiantai Drinktech
The agitator in a dairy fermentation tank is mainly used to keep the product homogeneous and ensure uniform fermentation conditions throughout the tank. The main functions of agitator includes:
1. Uniform temperature distribution
During fermentation, the product needs to stay within a relatively narrow temperature range. The agitation prevents temperature gradients between the top, middle, and bottom of the tank.
This is particularly important when the tank has a jacket for heating or cooling.
2. Uniform distribution of bacteria
For yogurt and probiotic products, starter cultures or probiotic bacteria need to be evenly distributed. Gentle agitation helps maintain a consistent bacterial concentration throughout the tank.
3. Prevent sedimentation
Some dairy products contain proteins, minerals, fruit particles, or other suspended solids.
Agitation helps prevent these materials from settling at the bottom.
4. Improve heat transfer
Agitation continuously moves the product across the tank wall. This improves heat transfer between the product and the heating/cooling jacket and makes heating or cooling faster and more uniform.
5. Maintain product consistency
For products such as drinkable yogurt, probiotic drinks, and cultured milk, agitation can help maintain consistent viscosity and composition.
The agitation should usually be gentle, for dairy fermentation, high-speed agitation is generally not desirable. Excessive shear can:
- Damage the structure of the fermented product
- Reduce the desired yogurt gel structure
- Cause excessive foaming
- Introduce unnecessary air/oxygen
- Affect the final texture
So the agitator is normally designed for low-speed, gentle mixing.
Tiantai, provides turnkey solutions on brewery equipment, winery equipment, beer equipment, cider equipment, kombucha equipment, distiller equipment, dairy production line. If you are looking for dairy fermentation solutions, we are at your disposal anytime.
Derrick
Sales Manager
[email protected]
Tiantai Drinktech
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