When should you replace your bottle's cap or seal?

¿Cuándo cambiar el tapón o la junta de tu botella?

If your bottle is dripping, hard to close properly, or no longer watertight, it isn't always the bottle itself that's at fault. Most of the time the problem is a small, inexpensive part: the cap or its seal.

Here's how to tell which one you need to replace, and how to find the right spare part.

Signs the cap needs replacing

It's harder to close than before, or doesn't sit tight anymore
It has faded or cracked on the outside
The opening mechanism (screw, click, or spout) is stiff or not working properly

With daily use, it's normal for the cap to wear out before the body of the bottle does. You don't need to replace the whole bottle — just that piece.

Why the seal is the part that fails most

The seal is the rubber ring that makes the closure watertight, and by far the most sensitive part of the whole bottle.

It loses flexibility over time, especially with frequent dishwasher use
It can deform from heat or harsh detergents
If it dries out or shifts out of place, it stops sealing even if the cap is screwed on tight

It's a small part, but it's responsible for most of the leaks that seem like "the bottle's fault".

How to find the right spare part for your LAKEN bottle

Each bottle line (Classic™, Summit™, Futura™, Jannu™, Flow™, Oasis™...) has its own matching cap and compatible seal. Check your bottle's model and look for the matching cap or seal in our spare parts section: it's faster and cheaper than replacing the whole bottle, and it extends its life for years to come.

Tip from the LAKEN team

Check the cap and seal every few months, especially if your bottle goes through the dishwasher often. Replacing them in time prevents leaks, bad odours, and extends your bottle's life far beyond what most people expect.