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Guide: Choose the Right Rim Type (Full Curl vs. Folded Edge)
When selecting aluminium containers, the rim type is an important detail that affects how the container is sealed and which lids will fit. Here we explain the differences so you can choose the right option for your business.
Aluminium Container with Full Curl
Full Curl
The aluminium edge stands vertically upward, making the rim flexible so it can be folded down over the lid.
- Provides a stable construction that does not bend easily.
- No sharp edges – safe to handle.
- Reduces the risk of deformation when filled with hot food.
- Premium feel that communicates quality.
Best suited for: Plastic lids (snap-on) or foil lids. Commonly used in take-away and catering where the lid must stay secure during transport.
Aluminium Container with Folded Edge
Folded Edge
The aluminium edge stands vertically upward, making the rim flexible so it can be folded down over the lid.
- Easy to stack (space-efficient in storage).
- The rim is folded manually or by machine for a tight seal.
- Cost-effective choice for high volumes and continuous production.
- Excellent for automated packaging.
Best suited for: Cardboard lids with aluminium coating.






































