The most likely reason your Circular Cup lid is leaking will be down to the positioning of the seals. Click here to see the seal replacement guide.

If your lid isn’t working and you have a drink in it, it may be down to a steam build up. Carefully remover the lid to relieve the pressure.

If the cup does not have liquid in it, it may have a manufacturing fault or have suffered a drop. Please contact our support team for more help.

You can detach the inner seals from the plunger to clean them, to reattach them place the rimmed edge of the seal upside down and then loop the seal around the plunger. Then adjust the seal until it sits comfortably in place.

If you can’t get the grey button back on simply put the main part of the lid on a flat surface and then firmly apply pressure to the grey disc until you hear it pop on!

NO. PLEASE DO NOT MICROWAVE! 

There are metal parts in the lid, so we don’t recommend microwaving our cups – ever.

Yes you can, but top shelf only. Make sure you click the lid open first!

Circular Cup’s are melamine and BPA free. 

We took a great deal of care to ensure the Circular Cup is held to strict safety levels and our own very high standards.

Don’t worry – you can order more here!

Yes, they are. In fact we would love to see you mix and match your lids!

Share your combinations with @Circularandco

Firstly, we will do everything possible to help you extend the life of your Circular Cup. If the seals of your cup eventually degrade and leak, just call us and we will replace them – they are easy to switch over. If the mechanism fails, just call and we can supply you with a new lid. If your cup does eventually need recycling then it is designed to go in your kerbside collection. These facilities differ greatly between countries and local authorities, therefore if you are unsure what can be accepted in your area, the best way to ensure 100% recovery is through our takeback promise.

In most cases your Circular Cup will keep your drink warm for between 60-90 minutes – plenty of time, even for the most slow-supping coffee drinker. Not bad. This is far, far longer than any disposable coffee cup. And for at least as long as any comparable reusable coffee cup on the market. And, generally speaking we found that Circular Cup loses about 10° C of heat for every 30 minutes.

Something to watch out for though is that a freshly made latte will often vary in temperature – even starting from as low as 50° C. So check your latte. If it comes lukewarm, tell your Barista. Or drink with relative haste.

And while we don’t wish to preach the obvious, because Circular Cup is so easy to open and close, you should always keep your Circular Cup shut when you’re not drinking, to help your drink stay warmer for that little bit longer.