Milk yogurt dairy production and filling line

Discover our comprehensive range of dairy and plant – based milk equipment. Our yogurt production line, including yogurt making machines and fermentation machines/tanks, is perfect for crafting various yogurts like Greek yogurt. The yogurt ice – cream machine adds a unique product option. For milk processing, we offer mini and full – scale dairy plants with UHT and pasteurized milk production lines. Our soyabean milk and plant milk makers expand your product portfolio. And for cheese lovers, there are cheese production plants, automatic cheese making machines, and processing machinery, along with equipment for chechil cheese production.

Dairy products include:
1. Pasteurized milk
2.Yogurt: Liquid Yogurt or Solid Yogurt
3. Room temperature beverage milk: Shelf stable milk or UHT milk (Ultra High Temperature milk)
4. Yogurt beverage: Cultured milk beverage
5.Cheese: Cheese
6.Pure milk: Fresh milk or Raw milk

Different dairy products require different production configurations.
What product do you want to make?
how many liters do you want to produce per day? (8 hours of working time per day)
What are the raw materials for producing your product? powder of milk or liquid fresh milk?
How many bottles/pouches do you want to produce per hour?

Yogurt: Yogurt is a dairy product made by heating milk and then adding yogurt bacteria (such as lactic acid bacteria and streptococcus bacteria, etc.) for fermentation. During the fermentation process, yogurt develops a sour taste and a rich texture. At the same time, it is also rich in nutrients such as probiotics and protein. Fruits, grains, or other seasonings can be added to yogurt to improve its taste and nutritional value. Room-temperature Beverage Milk: Room-temperature beverage milk is a kind of drink made through processes such as high-temperature sterilization, filling, and sealing of milk. Room-temperature beverage milk can be stored for a long time without the need for refrigeration equipment, making it convenient for consumers to enjoy it anytime and anywhere. Common packaging forms include plastic bottles, cartons, and cans, etc. Sour Milk Beverage: A sour milk beverage is a kind of drink made by adding fermenting agents (such as lactic acid bacteria and streptococcus bacteria, etc.) to milk, fermenting it, and then adding fruit juices, syrups, spices, and other seasonings. The sour milk beverage has additional ingredients like fruits based on yogurt, resulting in a more diverse and rich taste. Cheese: Cheese is a solid product made by heating milk and under the action of coagulants and bacteria, etc. There are various types of cheese, including hard cheese, semi-hard cheese, soft cheese, and blue cheese, etc. Different types of cheese have different processes such as cutting, pressing, salting, and storage, so their tastes and nutritional values also vary. Pure Milk: Pure milk is an unprocessed milk that is directly extracted from cows. In the production process of pure milk, only simple processes such as filtration, sterilization, and packaging are carried out, maintaining the original taste and nutritional components of the milk. Pure milk can be consumed as a single beverage, and it can also be used in cooking and the production of other dairy products. Fresh Cream: Fresh cream is a dairy product made by separating the milk fat layer and then heating and stirring it. Fresh cream can be used to make cakes, desserts, and other baked goods, and it can also be used as a condiment on the dining table.

Yogurt production lines typically include the following main steps:

1. Raw material preparation: First, the raw materials (such as milk, lactose, fruit juice, etc.) need to be proportioned and pretreated to ensure that the ingredients meet the requirements.
2. Sterilization and homogenization: The raw materials are sterilized at high temperatures to remove harmful microorganisms, and then homogenized to evenly disperse the components.
3. Fermentation: Adding a fermenting agent to sterilized and homogenized raw materials, fermenting under constant temperatureconditions to produce lactic acid, thereby forming yogurt.
4. Cooling and packaging: After fermentation is completed, the product needs to be quickly cooled to the appropriate temperature, and then automatically weighed, filled, labeled, and packaged.
If your raw material is liquid fresh milk, the standard of complete yogurt Processing Production Line is Fresh milk – Refrigerated storage tank/or Cache tank – double tank filter – preheating tank – homogenizer – sterilization tank – fermentation tank – filling machine (and CIP)Before we provide a quotation to the customer, we need to ask the following questions:
I. What products does the customer produce? Is it solid yogurt or liquid yogurt? What are the raw materials? What is the production output of each product, including the daily production output, and within how many hours does the customer plan to complete the sterilization?
II. The customer’s production process: Sterilization temperature, sterilization time, cooling temperature (if fermentation is required, confirm the fermentation temperature and time), and the required shelf life, which is very important as it is related to whether to use high temperature or low temperature, and whether to adopt ordinary filling or aseptic filling. The standard process for pasteurized milk: Buffering — Filtration — Milk purification — Raw milk storage (configured according to the daily processing volume) — Preheating — Homogenization — Pasteurization — Cooling — Filling The process for liquid yogurt: Buffering — Filtration — Milk purification — Raw milk storage (configured according to the daily processing volume) — Sugar melting/Blending — Preheating — Homogenization — Pasteurization — Fermentation tank (determine the size and quantity of the fermentation tank according to the daily fermentation volume) — Cooling — Finished product storage — Filling The process for solid yogurt: Buffering — Filtration — Milk purification — Raw milk storage (configured according to the daily processing volume) — Sugar melting/Blending — Preheating — Homogenization — Pasteurization — Inoculation tank — Filling Not every customer needs to follow the above standard processes. It should be determined according to their production output, budget, and the actual situation of the factory building.
III. Packaging form: What kind of packaging does the customer plan to use for the product? Yogurt is usually packaged in cups. Pasteurized milk is mostly packaged in bags and bottles, and it can also be packaged in cups.
IV. Heating method and voltage situation:What is the voltage situation? Is it the same as that in our country? If not, what is the specific voltage? The production line equipment must be connected to three-phase electricity, and some also require an independent transformer. Does the customer use electric heating or steam heating?

Yogurt Production Line Operation and Running Time Schedule (Raw Material: Fresh Milk, Product: Yogurt)

Step NumberEquipment NameOperation ContentRunning Time
1Refrigeration TankReceive and refrigerate fresh milk to keep the raw materials fresh, controlled at 2 – 6°C.Long – term refrigeration (subject to factory demand).
2Double – filterThe operator starts the pump to transport the milk liquid to the filter to remove impurities and particles in the milk liquid.Filtration time is about 10 minutes.
3Pre – heating TankThe milk liquid is transported to the pre – heating tank by a pump and heated to 40 – 60°C, preparing for the homogenization and sterilization processes.Pre – heating time is about 10 – 15 minutes.
4HomogenizerStart the pump to transport the pre – heated milk liquid to the homogenizer. The homogenization pressure is 20 – 25MPa. It homogenizes fat particles, improves the taste, and prevents stratification.Homogenization time is about 10 minutes.
5Pasteurization TankStart the pump to transport the homogenized milk liquid to the sterilization tank. Heat it to 85°C and maintain for 10 – 15 minutes to kill harmful bacteria and retain nutrients.Sterilization time is about 10 – 15 minutes.
6Fermentation TankStart the pump to transport the sterilized milk liquid to the fermentation tank. Add the culture medium, control the fermentation temperature at 40 – 45°C, and maintain for 4 – 6 hours to complete the fermentation process and form yogurt.Fermentation time is 4 – 6 hours.
71T/H Milk Pump (4 sets)Used for milk liquid transportation: ① Refrigeration Tank → Filter; ② Filter → Homogenizer; ③ Sterilization Tank → Fermentation Tank; ④ Fermentation Tank → Filling Machine.Each transportation takes about 3 – 5 minutes.
8Pipeline Circulation SystemTransport the milk liquid and support the CIP cleaning function to prevent contamination and cross – infection.Transportation time depends on the process.
9CIPAutomatically clean the equipment and pipelines with acid and alkali cleaning solutions to ensure hygiene. The operator starts the CIP cleaning program after production ends.Cleaning time is about 1 hour.

Dairy products filling machine:

Different dairy products require different filling machines :1. Milk. Room temperature filling machine or sterile filling machine, requiring complete sterilization processto ensure the safety and hygiene of dairy products, capable of filling and packaging various types of bottlesand cans;
2. Yogurt: lt is necessary to consider functions such as mixing and stirring, adding fruit granules, etc. Someproducts require sterile filling,
3. Milk powder. Select a dedicated powder filing machine, which requires good measurement accuracyand anti caking performance;
4. Cheese: Special equipment for squeezing and filling is required, which can achieve the molding andfling of cheese blocks or strips. Equipped with a cutting device, the entire production process can be completed;
5.Juice milk beverage: Select a filing machine with mixing function, which can evenly mix juice and dairyingredients,and requires precise control of ingredient ratio.
 I. Cup Packaging
Features
Material:
Usually PP (polypropylene) or PS (polystyrene) plastic cups, sealed with aluminum foil or plastic film.
Capacity: Small capacity (80 – 500ml), suitable for yogurt, pudding, ready – to – drink milkshakes, etc.
Sealability: Aluminum foil sealing can extend the shelf life (7 – 30 days under refrigeration).
Convenience: Can be opened and eaten immediately, suitable for single – serving consumption scenarios.
Cost:The cost per cup is $0.04 – $0.21 (depending on the cup material and printing process). Low investment in the production line, suitable for small and medium – sized dairy enterprises.
Application Scenarios: Short – shelf – life refrigerated products (such as yogurt, fresh milk desserts). Retail in supermarkets and convenience stores.
II. Glass Bottle Packaging
Features:
Material: Transparent or brown glass, with metal caps or plastic screw – on caps.
Capacity:200- 1000ml, commonly used for traditional pasteurized milk and high – end fresh milk.
Shelf Life:5-15 days under refrigeration. Glass has excellent barrier properties, preserving the flavor well.
Environmental Friendliness: Can be recycled (recovered, cleaned, and disinfected), with a low carbon footprint.
Cost:The cost per bottle is $0.29 – $0.71(including the deposit – return system). The production line requires cleaning and disinfection equipment, with high initial investment.
Application Scenarios:High – end fresh milk, customized dairy products (such as glass – bottled yogurt). Local delivery, community milk – subscription services.
Advantages and Disadvantages:100%recyclable, with a high – end texture and high consumer trust. Heavy and fragile, with high logistics costs; requires the establishment of a recycling system.
III. Plastic Bottle (PE/PET Bottle with Aluminum Foil Seal)
Features: Material: PE (polyethylene) or PET (polyester) bottle body, heat – sealed with aluminum foil.
Capacity:250- 1000ml, commonly seen in UHT sterilized milk and flavored milk.
Shelf Life: 6 – 12 months at room temperature (UHT process).
Barrier Property: The aluminum foil layer effectively isolates oxygen and light.
Cost:The cost per bottle is $0.11 – $0.29 (PET costs more than PE). – High – speed filling lines are efficient, suitable for large – scale production.
Application Scenarios:  Long – shelf – life room – temperature milk (such as boxed milk, plant – based protein beverages). E – commerce channels, distribution in remote areas.
Advantages and Disadvantages:  Lightweight and drop – resistant, suitable for long – distance transportation. Multilayer composite materials are difficult to recycle, with high environmental pressure.
IV. Spout Pouch
Features:
Material: Multilayer composite film (PET/AL/PE), with a built – in spout.
Capacity: 200 – 1000ml, common in children’s milk and fruit – flavored yogurt.
Portability: Can be drunk directly without the need for auxiliary tools.
Shelf Life:6-9 months at room temperature (requires UHT sterilization).
Cost: The cost per pouch is $0.14 – $0.43 (the spout structure increases the cost). The filling equipment needs to be equipped with a spout positioning system. Application Scenarios:  Children’s dairy products, sports drinks, fruit purees, etc. Outdoors, schools, vending machines.
Advantages and Disadvantages: Portable and leak – proof, attractive to young consumers. The spout may affect the sealability, and the composite film is difficult to recycle.
V. Gable Top Carton
Features:
Material: Paper – based composite material (cardboard + PE coating), with a gable – top design.
Capacity: 500 – 2000ml, commonly used for fresh milk and fruit juice.
Shelf Life:7- 14 days under refrigeration. Should be consumed as soon as possible after opening.
Environmental Friendliness: Recyclable, but the treatment of the PE coating is complex.
Cost: The cost per carton is $0.21 – $0.57(high – end printed versions are more expensive). Requires special filling equipment, suitable for medium – to – large – sized dairy enterprises.
Application Scenarios:  Pasteurized fresh milk, high – end refrigerated yogurt. Display in supermarket freezers. Advantages and Disadvantages: The paper – based material has a good environmental image and high shelf recognition. – Difficult to preserve after opening, requires a refrigerated supply chain.
VI. Aseptic Soft Packaging (Tetra Pak – style)
Features:
Material:6- layer composite (cardboard + aluminum foil + PE), Tetra Pak’s patented technology.
Capacity: 250 – 1000ml, the mainstream packaging for room – temperature milk and soy milk.
Shelf Life: 6 – 12 months at room temperature, without the need for preservatives.
Barrier Property: The aluminum foil layer completely isolates light and oxygen, with the best preservation effect.
Cost: The cost per package is $0.07 – $0.17(depending on the purchase quantity, with high Tetra Pak licensing fees). High investment in the production line, requires an aseptic filling environment.
Application Scenarios:  Ultra – high – temperature sterilized (UHT) milk, dairy beverages. Global distribution, emergency reserve food.
Advantages and Disadvantages: Ultra – long shelf life, suitable for any climate region. Difficult to recycle the aluminum – plastic composite, highly dependent on patented technology.
Comprehensive Comparison and Selection Suggestions (USD)
Packaging TypeCost (USD/Unit)Shelf LifeEnvironmental FriendlinessSuitable Products
Cup Packaging$0.04 – $0.217 -30 days (refrigerated)LowYogurt, Desserts
Glass Bottle$0.29 – $0.715 -15 days (refrigerated)HighHigh – end Fresh Milk, Custom – made Dairy Products
Plastic Bottle$0.11 – $0.296 -12 months (at room temperature)Medium – LowUHT Milk, Flavored Beverages
Spout Pouch$0.14 – $0.436 -9 months (at room temperature)LowChildren’s Milk, Portable Drinks
Gable – Top Carton$0.21 – $0.577 -14 days (refrigerated)MediumFresh Milk, Refrigerated Yogurt
Aseptic Soft Packaging$0.07 – $0.176 -12 months (at room temperature)Medium – LowUHT Milk, Globally Distributed Products