PET cans for drinks: a buying guide
Updated: 30.09.2026
PET cans are clear plastic containers closed with an easy-open aluminium lid, just like a classic drinks can. They are used by cafés, bars and small juice and cold drink producers who want clear, light, sealed packaging. This guide explains what to check before ordering cans, lids and a sealing machine.
How a PET can works
A PET can has three elements that must match:
- the can body, made of PET, with a mouth shaped for sealing;
- the aluminium lid, usually with a pull ring;
- the sealing machine (can seamer), which fixes the lid to the can mouth with a double seam: the edge of the lid and the edge of the can are rolled together and pressed, forming a tight joint.
If one of these elements does not match the others, the closure will not be tight. This is why the three are chosen together.
Lid standards: #202 and #211
The diameter of the can mouth and lid is expressed as a three-digit code taken from the system used in the can industry:
- the first digit is whole inches;
- the last two digits are sixteenths of an inch.
| Code | Reading | Calculated nominal value |
|---|---|---|
| #202 | 2 and 2/16 inches | about 54 mm |
| #211 | 2 and 11/16 inches | about 68 mm |
The millimetre value is calculated from the code and is indicative only; the actual diameter of the lid and can mouth is confirmed on each product's technical data sheet.
The practical rule: the lid must have the same code as the can. A #202 lid is used only on cans with a #202 mouth, and a #211 lid only on cans with a #211 mouth. The code is stated on each can and lid product page.
Volume
Each can has a nominal volume (the declared fill volume) and a brim-full volume (the total volume when filled to the top). The difference is the headspace under the lid, needed for a proper seal and to stop liquid spilling during closing.
When choosing the volume, consider:
- the portion you sell (for example a cold drink serving or a coffee serving);
- room for ice or ingredients, if applicable;
- the height of the can, which must be compatible with the sealing machine (some machines have an adjustable height range).
The volumes available are shown in the shop, with the nominal volume and, where available, the brim-full volume.
The sealing machine
| Type | How it works | Suitable for |
|---|---|---|
| Manual | the operator works a lever or crank | small volumes, events, trials |
| Semi-automatic | the operator places the can and lid, the machine does the sealing | cafés, bars, small daily production |
| Automatic | cans are fed and sealed on a line | series production |
What to check on the machine:
- the lid size it is fitted for: the chuck and seaming rollers are specific to one size (#202 or #211); switching to another size usually requires changing the tooling;
- the height range of cans it accepts;
- the power supply and working space;
- adjustment and seam checking, according to the machine manufacturer's instructions.
Before production, run a simple test: seal a few cans filled with water, turn them upside down and press the body gently. A proper seal lets no liquid out.
Compatibility with your product
Whether PET cans are compatible with carbonated drinks, hot filling, pasteurisation or particular food categories is confirmed on the technical data sheet of each product. Do not assume that a can suitable for a still cold drink is automatically suitable for other uses. For food contact use, ask for the declaration of compliance for the chosen product.
Quantities per carton and pallet
Cans and lids are delivered in cartons with a fixed number of pieces and, for large volumes, on pallets. The number of pieces per carton and per pallet is shown on each product page.
When planning your order:
| Item | Recommendation |
|---|---|
| cans | calculate from estimated sales for the period between two orders |
| lids | order at least the same number as cans, plus a reserve for machine set-up and any faulty closures |
| storage | keep cans and lids in their original, closed packaging, in a clean, dry place, protected from dust |
Lids may be sold separately from cans. Check on the product page whether the price includes lids.
Customisation
PET cans can be customised, for example by labelling with your brand. The available options, minimum quantities and lead times are confirmed in the quote. See Custom packaging or write to [email protected].
Checklist before ordering
- What nominal volume do I need, and how tall is the can?
- What code does the can mouth have (#202 or #211)?
- Do the lids have the same code?
- Is the sealing machine fitted for this code and this height?
- Does the technical data sheet confirm compatibility with my drink (carbonated, hot fill, food contact)?
- How many cans and lids are in a carton, and how many cartons do I need?
- Have I tested the seal on a few cans before production?