Dairy & Yogurt Packaging

Dairy Products Have Different Packaging Requirements

Dairy and yogurt packaging may need to accommodate:

• Plain yogurt
• Flavored yogurt
• Greek-style and thick yogurt
• Drinkable yogurt
• Cultured dairy beverages
• Flavored milk
• Chocolate milk
• Coffee-flavored milk
• Plant-based milk drinks
• Yogurt smoothies
• Milkshakes
• Frozen yogurt
• Yogurt parfaits
• Dairy desserts
• Products containing fruit, cereal or other inclusions

These products differ in viscosity, filling behavior and drinking or eating method.

A thick yogurt may require a wide opening and spoon access. A drinkable yogurt requires controlled flow through the drinking opening. A milkshake may need space for foam or toppings. A dairy beverage containing fruit pieces or cereal requires separate evaluation of particle size and closure design.

Packaging selection should begin with the finished product and how the customer will consume it.

Two PET Packaging Formats for Dairy Applications

COPAK offers two main packaging directions for dairy and yogurt applications:

1. PET cups for freshly prepared, spoonable and takeaway products
2. PET cans for selected sealed and drinkable dairy beverages

These formats serve different purposes.

PET cups are commonly associated with immediate service, flexible portion sizes and visible toppings. PET cans are more relevant to pre-filled beverages that can flow and be consumed through an easy-open can lid.

Not every yogurt product is suitable for PET can packaging.

PET Cups for Yogurt and Dairy Products

COPAK’s clear PET cup range includes products presented for yogurt, frozen yogurt, ice cream, milk, milkshakes and other takeaway food and beverage applications. Flat and dome lid options are available for selected cup series.

PET cups can be considered for:

• Freshly portioned yogurt
• Frozen yogurt
• Yogurt parfaits
• Yogurt with granola
• Yogurt with fruit
• Milkshakes
• Yogurt smoothies
• Dairy desserts
• Ice cream and dairy-based desserts
• Sample portions
• Takeaway breakfast products
• Café and foodservice dairy products

The transparent cup wall allows customers to see the color, consistency, layers and toppings.

This visibility is particularly useful for parfaits, fruit yogurt, frozen yogurt and dairy desserts where presentation influences product selection.

Flat Lids for Compact Dairy Packaging

Flat lids can provide a compact format for products filled below the cup rim.

They may be suitable for:

• Plain yogurt portions
• Fruit yogurt
• Yogurt-based breakfast cups
• Drinkable dairy products served with a straw
• Milkshakes without high toppings
• Products placed in takeaway bags or cup holders

The lid design should match the way the product will be eaten or consumed.

A straw opening intended for a fluid drink may not work for thick yogurt. A spoonable product may require a lid that can be removed easily without interfering with the contents.

The cup and lid should be evaluated as a matched combination.

Dome Lids for Toppings and Layered Products

Dome lids provide additional space above the cup rim.

They can be considered for:

• Frozen yogurt with toppings
• Yogurt parfaits with fruit
• Yogurt with granola or cereal
• Milkshakes with whipped cream
• Dairy desserts with decorative ingredients
• Promotional products with visible layers

The additional space can help preserve the appearance of toppings and reduce contact between the product and the lid.

The selected dome height should be checked against the actual topping quantity. Excess space may increase packaging volume, while insufficient space may damage the presentation or cause ingredients to contact the lid.

Packaging for Spoonable Yogurt

Spoonable yogurt normally requires a wide container opening.

The buyer should consider:

• Product thickness
• Portion size
• Spoon dimensions
• Ease of removing the lid
• Fruit or cereal inclusions
• Required topping space
• Cup stability during eating
• Storage and stacking arrangement
• Product presentation
• Takeaway handling

Thick yogurt may not settle in the same way as a liquid beverage. Filling equipment and portion accuracy should be evaluated using the actual product.

Highly viscous products may also retain more product on the cup wall. Container shape and opening width can affect the customer’s ability to access the full portion.

Packaging for Frozen Yogurt

Frozen yogurt packaging should support both serving and presentation.

COPAK’s clear PET ice cream cup range is presented for frozen yogurt, ice cream, parfaits and similar products, with flat and dome lid options available for selected formats.

Frozen yogurt businesses should consider:

• Serving temperature
• Portion size
• Topping quantity
• Spoon access
• Lid clearance
• Condensation
• Short-term storage before consumption
• Takeaway distance
• Cup rigidity when held
• Carton and inventory organization

The cup should be tested under the actual serving conditions.

A cup that performs well at normal room temperature should still be evaluated with the intended frozen or chilled product.

PET Cups for Milkshakes and Yogurt Smoothies

Milkshakes and yogurt smoothies behave differently from spoonable yogurt.

They are usually consumed through a straw or direct-drinking opening, making viscosity and ingredient size important.

The buyer should evaluate:

• Finished viscosity
• Foam level
• Ice content
• Fruit pulp
• Seeds
• Protein powder
• Cereal or other inclusions
• Straw diameter
• Lid opening
• Expected drinking time

A thick milkshake may require a larger straw opening than a standard cold dairy drink.

Testing should use the finished recipe. Water-based testing does not reproduce the flow behavior of a yogurt smoothie or milkshake.

PET Cans for Drinkable Yogurt and Dairy Beverages

COPAK PET cans combine a transparent PET body with an easy-open aluminum lid. Compatible sealing equipment is also available for PET can projects.

PET cans can be considered for selected:

• Drinkable yogurt
• Cultured dairy beverages
• Flavored milk
• Chocolate milk
• Coffee-flavored milk
• Plant-based milk beverages
• Light yogurt smoothies
• Dairy protein drinks
• Refrigerated café beverages
• Grab-and-go dairy drinks
• Event beverages
• Private-label chilled drinks

The clear can body shows the beverage color and texture, while the easy-open lid provides a sealed can-style presentation.

The product must be sufficiently fluid for the planned filling and consumption method.

PET cans should not automatically be selected for conventional spoonable yogurt.

Can Thick Yogurt Be Packed in a PET Can?

Highly viscous or spoonable yogurt is generally not the most practical match for an easy-open can format.

Potential difficulties include:

• Slow filling
• Inconsistent fill levels
• Product remaining inside the container
• Difficulty consuming the product through the opening
• Large fruit pieces blocking the drinking path
• Poor customer access to the bottom of the container

A lighter drinkable yogurt or yogurt beverage may be more suitable.

The final decision should be based on trials using the actual formulation, filling equipment, lid and intended drinking method.

A product described as “yogurt” may range from a spoonable food to a fluid beverage. The packaging format should follow the product’s actual behavior.

Dairy Products with Fruit, Cereal or Particles

Fruit yogurt, breakfast products and dairy drinks may contain:

• Fruit pulp
• Fruit cubes
• Seeds
• Granola
• Cereal
• Chocolate pieces
• Jelly
• Protein particles
• Other visible inclusions

For PET cups, the opening should allow easy filling and spoon access.

For drinkable products, the largest particle should be considered when selecting the straw, drinking opening and filling equipment.

PET cans are more suitable for filtered or controlled drinkable formulations than for products containing large pieces.

The complete product should be tested after standing and refrigeration because ingredients may float, settle or absorb liquid over time.

Filling Temperature Must Be Confirmed

The filling temperature must be defined before selecting a PET cup or PET can.

Standard PET packaging intended for cold food and beverage applications should not automatically be treated as suitable for:

• Hot filling
• In-container pasteurization
• Retort processing
• Steam treatment
• Other elevated-temperature processes

The buyer should provide:

• Product temperature at filling
• Temperature after mixing or fermentation
• Cooling method
• Time between cooling and filling
• Time between filling and closing
• Storage temperature
• Transportation temperature
• Planned thermal treatment, if any

Container shape and closure performance may be affected by conditions outside the intended operating range.

The complete process requires validation before commercial production.

Cold-Chain Management

Many dairy and yogurt products depend on controlled refrigerated handling.

The packaging container does not create or replace a cold chain.

The product owner should define:

• Required storage temperature
• Allowable handling time outside refrigeration
• Refrigerated display conditions
• Transportation method
• Warehouse conditions
• Retail handling procedures
• Consumer storage instructions

Packaging tests should reproduce the intended cold-chain conditions as closely as practical.

Condensation, repeated handling and movement inside refrigerated transport may affect labels, cartons and presentation even when the primary container remains unchanged.

Packaging Does Not Determine Product Safety or Shelf Life

A PET cup or PET can cannot establish the safety or shelf life of a dairy product by itself.

Product stability may be affected by:

• Dairy or plant-based formulation
• Water activity
• Acidity
• Sugar content
• Live cultures
• Fruit ingredients
• Processing method
• Filling hygiene
• Cooling speed
• Closure integrity
• Storage temperature
• Distribution time
• Light and oxygen exposure

COPAK can supply packaging components, while the dairy producer remains responsible for validating the complete filled product.

Microbiological testing, process validation and shelf-life studies should be completed according to the product and target market.

No shelf-life claim should be based only on the appearance or material of the container.

Separation and Sediment in Dairy Beverages

Some dairy beverages naturally separate during storage.

Possible changes include:

• Cream rising
• Protein sediment
• Fruit particles settling
• Cocoa settling
• Layer formation
• Changes in foam
• Thickening over time

Packaging cannot correct instability caused by the formulation or processing method.

The beverage producer should evaluate whether the product requires mixing instructions, formulation adjustments or a specific storage method.

A clear PET container makes product separation visible. This can support product transparency, but it may also reveal changes that would be less visible in an opaque package.

The visual behavior of the product should be tested throughout the intended storage period.

Light Exposure and Transparent Packaging

Clear PET packaging provides direct product visibility.

It can highlight:

• Yogurt color
• Fruit layers
• Milkshake texture
• Dairy beverage consistency
• Toppings
• Portion size
• Flavor differences

Some dairy formulations may change under prolonged light exposure.

The product should be evaluated under its expected commercial conditions, including refrigerator lighting, store lighting, transportation and storage duration.

Labels, printed areas, sleeves, secondary cartons or controlled display conditions may be considered when reduced light exposure is required.

Selecting the Correct Capacity

Capacity should be based on the finished product and serving method.

Actual filling trials should be completed before approving the final capacity.

PET Cup or PET Can: Which Should You Choose?

The packaging format should follow the product texture and sales model.

PET Can Sealing Requirements

PET cans used with easy-open aluminum lids require compatible sealing equipment.

The PET can, lid and sealing machine should be treated as one system.

The buyer should confirm:

• Can dimensions
• Can opening
• Aluminum lid specification
• Filling method
• Required production output
• Manual, semi-automatic or automatic operation
• Product changeover needs
• Cleaning requirements
• Seal inspection procedure
• Operator training
• Maintenance arrangements

COPAK provides PET can sealing machine options for beverage projects.

An empty-container test should be followed by a production trial using the actual dairy beverage and intended filling conditions.

Takeaway and Refrigerated Distribution

Dairy products may be handled through stores, takeaway services, refrigerators and cold-chain distribution.

The complete package should be evaluated for:

• Lid fit
• Seal consistency
• Cup rigidity
• Stability during carrying
• Condensation
• Label adhesion
• Refrigerator placement
• Carton arrangement
• Movement during transportation
• Consumer opening
• Spoon or straw compatibility

A dense yogurt cup and a fluid milk beverage place different forces on the package during movement.

Testing should use the actual filled weight and expected transportation process.

Custom Printing and Product Identification

COPAK offers custom printing for selected PET cup products. PET can projects may also use labels, stickers or sleeve-based decoration according to project requirements.

Branding may include:

• Company logo
• Product name
• Yogurt flavor
• Milk or plant-based ingredient identification
• Serving instructions
• Preparation or filling date area
• Measurement marks
• QR code
• Promotional design
• Seasonal graphics
• Private-label branding

Clear areas can be retained to show fruit layers, yogurt consistency or beverage color.

Designs should be reviewed on the actual container. A flat artwork file may appear differently when wrapped around a curved cup or can.

Packaging for Different Business Models

Information to Prepare Before Requesting a Quotation

Detailed product information helps COPAK recommend a more suitable package.

Buyers should prepare:

• Product name
• Dairy, yogurt or plant-based classification
• Spoonable or drinkable format
• General formulation
• Product viscosity
• Presence of fruit, cereal or particles
• Largest particle size
• Target filling volume
• Actual filling temperature
• Required PET cup or PET can
• Preferred flat or dome lid
• Required straw or spoon
• Filling method
• Sealing equipment requirement
• Required order quantity
• Custom printing or labeling requirements
• Storage temperature
• Distribution method
• Target market
• Sample requirements

A change in formulation, viscosity, filling temperature, cup, lid or sealing process may require a new packaging trial.