Milk Fermentation Tank

Stainless Steel Dairy Fermentation Tanks for Yogurt, Kefir, Cultured Milk, and Probiotic Beverage Production

ZPET Milk Fermentation Tanks are designed for dairy processors that require hygienic construction, stable temperature control, gentle mixing, and scalable production capacity for fermented milk products. They are widely used in fermented milk beverage production, drinking yogurt lines, kefir processing, cultured cream manufacturing, probiotic dairy drinks, and functional dairy product development. With customizable capacities from 300L to 20,000L, food-grade stainless steel construction, heating and cooling jackets, low-speed agitators, and optional automation systems, these tanks help producers achieve consistent texture, balanced acidity, and reliable fermentation performance.

Key Features of Milk Fermentation Tank

Food-Grade Stainless Steel Construction

  • Made from SUS304 stainless steel as standard

  • Optional SUS316 stainless steel for higher hygiene and corrosion-resistance requirements

  • Non-reactive surface helps protect milk flavor, aroma, and nutritional value

  • Suitable for strict dairy sanitation and food-contact applications

  • Designed for long-term use in both startup and large-scale dairy processing plants

Precision Temperature Control

  • Equipped with heating and cooling jackets

  • Maintains accurate fermentation temperature for bacterial growth and activity

  • Supports more stable fermentation and repeatable product quality

  • Helps producers control texture, acidity, and culture performance

  • Suitable for products requiring tight temperature windows during fermentation and cooling

Gentle Mixing System

  • Uses a low-speed agitator specially designed for dairy fermentation

  • Helps prevent separation and sedimentation during processing

  • Protects milk proteins and live fermentation cultures

  • Improves uniform distribution of bacteria and ingredients

  • Suitable for yogurt drinks, kefir, cultured milk, and probiotic dairy formulations

Hygienic and Sanitary Design

  • Inner surface polished to ≤0.4 μm

  • Designed with no dead corners and easy drainage structure

  • Fully compatible with CIP (Clean-In-Place) systems

  • Helps reduce contamination risk and improve sanitation reliability

  • Supports compliance with international dairy hygiene and food safety standards

Specifications

Standard Technical Specifications

ItemSpecification
Capacity Range300L – 20,000L (Customizable)
MaterialSUS304 / SUS316 Stainless Steel
Tank TypeVertical / Horizontal
Temperature ControlHeating & Cooling Jacket
Mixing SystemLow-Speed Agitator
Inner Surface Finish≤0.4 μm
InsulationPolyurethane (Optional)

 

Optional Configurations and Customization

  • Automated temperature control system for more stable fermentation management

  • PLC control panel for process monitoring and batch repeatability

  • Sampling valves for routine quality testing

  • Load cells for accurate volume measurement

  • Customized agitator design for different milk-based products

  • Optional insulation upgrade for stronger thermal efficiency

Key Advantages of Milk Fermentation Tanks

Consistent Fermentation Results

  • Stable temperature control and gentle mixing help ensure uniform bacterial activity, consistent acidity development, and repeatable product quality.

High Food Safety Standards

  • Food-grade stainless steel construction and CIP-compatible hygienic design support international dairy hygiene and safety requirements.

Improved Production Efficiency

  • Integrated fermentation, mixing, and temperature control help reduce manual intervention and simplify dairy production workflow.

Flexible Capacity Options

  • Available from 300L to 20,000L, these tanks support pilot-scale testing, medium-scale processing, and large-volume dairy production.

Milk Fermentation Process Overview

This controlled process helps ensure stable texture, balanced acidity, and probiotic effectiveness.

1. Milk Preparation

  • Pasteurized milk enters the fermentation tank.

2. Culture Inoculation

  • Lactic acid bacteria or selected cultures are added according to the target dairy product.

3. Temperature Control

  • The tank maintains the optimal fermentation temperature for stable bacterial growth.

4. Gentle Mixing

  • Low-speed agitation ensures even distribution of cultures and ingredients without damaging milk structure.

5. Fermentation Stage

  • Milk thickens and acidity develops until the target product profile is reached.

6. Cooling and Storage

  • The product is cooled at the target pH to stop fermentation and preserve texture and flavor.

Optional Automation and Smart Control

The Milk Fermentation Tank can be configured with different levels of control depending on production scale and process standardization needs.

Basic Manual Monitoring

  • Suitable for smaller dairy startups and pilot-scale production.

Automated Temperature Control

Supports:

  • stable heating and cooling control

  • improved fermentation consistency

  • reduced manual temperature adjustment

PLC Monitoring and Process Control

Supports:

  • process monitoring

  • batch record management

  • better repeatability

  • more efficient large-scale dairy production

Manufacturing and Quality Control

Each ZPET milk fermentation tank undergoes:

  • Precision welding and surface polishing

  • Leak testing and structural inspection

  • Passivation for corrosion resistance

  • Final quality control before shipment

This helps ensure durability, hygienic performance, and compliance with food-grade dairy processing standards.

FAQs - Common Questions

1.What products can be made in a milk fermentation tank?

These tanks are suitable for fermented milk beverages, drinking yogurt, kefir, cultured milk, probiotic dairy drinks, cultured cream, and nutritional dairy bases.

Low-speed mixing helps distribute cultures evenly while protecting milk proteins and preventing separation or texture damage.

ZPET milk fermentation tanks are available from 300L to 20,000L, with customization available for different projects.

Yes. Optional automated temperature control and PLC systems are available for stronger process monitoring and repeatable production.

Yes. ZPET provides custom tank design, layout planning, technical consultation, and after-sales support for dairy fermentation projects.

Milk Fermentation Tank Details

100L Beer Brewing System

Why Choose ZPET Milk Fermentation Tanks?

1. 15+ Years of Fermentation Equipment Manufacturing Experience
ZPET has extensive experience in designing and manufacturing stainless steel fermentation tanks for dairy, beverage, brewing, and specialty processing projects.

2. High-Quality Food-Grade Stainless Steel Materials
We use durable, hygienic stainless steel and precision fabrication standards to ensure long service life and reliable dairy production performance.

3. Reliable Temperature and Mixing Systems
Our tanks are designed to provide the stable heating, cooling, and gentle agitation needed for consistent milk fermentation.

Trusted by 200+ Breweries & Beverage Brands Worldwide

From craft pioneers to global beverage leaders, we are proud to be the engineering force behind their success.

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Your Partner from Business Plan to First Brew

Founded in 2004, ZPET (Jinan Innovative & Craft Beer Equipment Co., Ltd.) has evolved into a global leader in customized brewing equipment. We don’t just manufacture tanks; we engineer success. Our team of expert brewers and engineers works closely with you to provide 3D brewery layouts, customized technical drawings, and optimized flow charts that fit your building’s unique footprint. With over 200 successful installations worldwide, we understand the nuances of international brewing standards and local regulations.

3D Layout

Footprint, workflow, utilities, safety.

Technical Drawings

Nozzles, manways, piping, controls.

Flow Charts

Process clarity from mash to packaging.

5,000㎡ Digital Manufacturing Center: Precision Engineering at Scale

Our Expert Engineering Team: The Brains Behind the Brew

With a dedicated team of over 20 senior mechanical engineers and professional brewmasters, ZPET provides more than just tanks. We offer technical consulting, 3D brewery layouts, and customized engineering solutions tailored to your specific brewing goals.

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