Gaskets - Missing, Not fitting, Falling out, Leaking, Cleaning

We get a lot of questions about gaskets: this post answers them all. If your lid is leaking, it's almost always the gasket, either out of place or due for a replacement.

Problem: the cap was missing its gasket. Check the packaging first, the gasket ships inside the box. Also check the bottom of your dishwasher, since gaskets can fall out during a cycle. Replacement gaskets: Regular Mouth · Wide Mouth

Problem: the gasket won't lay flat and has a bulge. The gasket has been stretched. Install it by pressing down on four sides first (like an X or a +), then press in between; never slide your finger around, which stretches the silicone like a rubber band. Screw the lid on slowly so it seats in the channel without stretching.

Problem: the gasket keeps falling out. It's likely worn. Gaskets wear faster with regular use, especially with oil or soap. Keeping spares on hand makes swapping easy; many people replace theirs every 6 months. If the gasket is new, follow the seating instructions above.

How to properly install your gasket: make sure it sits flat inside the groove on the underside of the cap. Watch the quick tutorial on our YouTube channel →

Gasket care tips: they're FDA-approved food-grade silicone, tear-resistant, and latex/allergy-free; clean by hand with soap and water (or baking soda and vinegar) or on the top rack of the dishwasher; replace when worn.

In summary: seat the gasket flat inside the groove, and replace it if it's stretched or worn. Shop replacement gaskets →