Batch Pasteurizers – Reliable Milk Pasteurizer Machines for Small Dairies

Tessa Dairy Machinery manufactures a full range of batch pasteurizers designed for the safe, efficient pasteurization of milk and dairy products. With multiple capacity options, our systems are ideal for small-scale producers, farmsteads, and artisan creameries across the U.S. and Canada.

Each batch pasteurizer is built to meet PMO (U.S.) and CSA (Canada) standards, ensuring compliance, food safety, and long-term reliability.

Prices start at 14,000$ for Non-US Unit

Required only in the US Market

Regulation:

To meet the PMO and Standard for Batch Pasteurizer, the VAT must have an additional Two-Channel temperature recorder and an indication thermometer for product and airspace.

Features:

Anderson Dual Pen chart recorder
Air space sensor
Product sensor
Electrical Air Space Heating Element.
Water Temperature digital indicator
Touch Panel controller
Heating Elements/Boiler controller
Speed Regulator
Emergency Switch

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If you're looking for a reliable solution to package your pasteurized milk, explore our milk bottle fillers designed for small and medium-sized dairies.

Batch Pasteurizer

The batch pasteurizer is an excellent milk pasteurizer machine for small-scale creameries and milk processors looking to produce pasteurized milk, cheese, yogurt, and other dairy products. Designed for versatility and efficiency, this machine allows both pasteurization and fermentation to take place in the same unit, making it ideal for operations that value simplicity, hygiene, and space-saving solutions.

Batch Pasteurizer types:

The most common unit type is a two-cover open-top. It is great for cheese makers, yogurt makers, and unique products. It has easy access and simple operation. The removable agitator feature allows you to have a clear and open tank to add ingredients, check consistency, and remove curd once ready.

Close-top/side-top tanks are mainly used for pasteurization or fermentation. Access is through a maintenance hole or a side cover attached to the tank with axles. In terms of efficiency, heat transfer, control panels, and temperature controllers, everything is the same.

The batch Pasteurizer is available in 50 gallons (170L) to 500 gallons (2000L).

Each unit has the following features:

Stainless steel control panel
7.5inch Touch Screen
Product Digital sensor
Water digital sensor
Speed invertor.

Heating Source: To pasteurize, a heating source must heat the water running through the jacketed tank.

We offer two options:

A. Electrical Heating Elements: It does not require an additional unit such as a boiler, but to get a reasonable pasteurization time of around an hour, there is a need for at least 4 7.5kw—9kw heating elements. This means at least 30kw, which can be too much for certain people or rural locations.

B. Hot-water Boiler: It requires additional cost but is the perfect heating partner for a Batch Pasteurizer.

It is quick and efficient and works on either gas or diesel. It reaches the desired temperature in minutes and is fully automatic when starting and stopping.

Click to check out this Wisconsin Creamery

AJ 300 Recorder

AJ 300 records while pasteurization is in progress guaranteeing an approved process according the PMO

3750$

Air Heater Element

A full Stain steel 304 heater

Which included an automatic temperature controller.

Connection 4" Tri-Clap

950$

Leak Detection Valve

A plug valve required according the PMO.

Designed to detect leak milk while pasteurizing.

Fully sanitary and easy to clean.

1900$

Cheese Cutting Knifes

Once milk is pasteurized, the vat can be used as a cheese making vat by inserting cutting knifes

3300 $

What Is a Milk Pasteurizer Machine?

A milk pasteurizer machine is a specialized piece of dairy equipment designed to heat raw milk to a specific temperature for a set duration, in order to eliminate harmful bacteria while preserving quality and flavor. Tessa’s batch pasteurizers allow dairy producers to safely pasteurize milk in controlled, consistent cycles — ideal for small-scale creameries, farms, and startup processors. These machines are compliant with food safety standards and are designed for ease of use, energy efficiency, and long-term durability.

⚙️ Key Features of Tessa Batch Pasteurizers

Capacities from 50 to 500 gallons
PMO-compliant construction (for Grade A milk production in the U.S.)
Dual-mode operation – supports pasteurization and fermentation in the same tank
Stainless steel design for durability and hygiene
Digital temperature control with precise settings
Built-in mixing agitator for even heating
Heating via electric elements or external hot-water boiler
CIP-compatible – easy cleaning with optional Clean-in-Place system

These batch-style milk pasteurizer machines are suitable for producing pasteurized milk, yogurt, cheese, and more — with consistent results every time.

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Why Use a Batch Pasteurizer?

A batch pasteurizer is the most practical type of milk pasteurizer machine for small to mid-sized dairy operations. It offers the flexibility and control needed for a wide range of dairy products without the complexity of continuous processing systems.

Batch pasteurizers are ideal for:

Small to mid-scale production volumes
Flexible product lines – milk, yogurt, cheese, and more
Lower startup and operating costs compared to HTST systems
Simplified cleaning and maintenance
Precise temperature control for fermentation and curd setting

Unlike HTST systems, a batch-style milk pasteurizer machine is easier to install, more affordable, and perfectly suited for creameries producing farm-fresh, premium, or artisanal dairy products.