Why Milk Powder Requires Special Can Ends？

Milk powder is sensitive to moisture, oxygen, and contamination, so its packaging must provide excellent protection and long-term shelf stability. This is why specialized can ends are used instead of standard beverage or food can ends.

Moisture Protection

Milk powder easily absorbs moisture from the air, which can cause:

Clumping
Spoilage
Loss of nutritional value

Milk powder can top and bottom ends use high-tightness seams and optional foil sealing layers to prevent humid air from entering the can.

Oxygen Barrier

Exposure to oxygen can cause:

Oxidation of fats
Flavor deterioration
Shortened shelf life

Therefore, can ends for milk powder are designed with excellent gas barrier performance, often combined with nitrogen filling during packaging.

Strong Mechanical Strength

Milk powder cans are usually large-volume (400g, 800g, 900g sizes).
The can ends must withstand stacking, handling, and long-distance shipping without deformation.

To achieve this, the ends typically feature:

Reinforced curl and panel designs
Thicker metal compared to beverage can ends

Safety and Hygiene Requirements

Milk powder is a food product consumed by infants, children, and adults, so:

Internal lacquer coatings must be food-grade and non-reactive
Production follows strict sanitary standards
Metal must not release odors or contaminants

Convenience Features

Modern milk powder can ends often include:

Easy Open Ends (EOE)
Plastic overcaps for reclosing
Spoon holders in some designs

This improves user experience and helps maintain freshness after opening.