Use this tool to find the correct gasket for your Bialetti Moka Pot.
Introduction
Proper maintenance of your moka pot will extend its life and keep your coffee tasting great. A part of moka pot maintenance is changing out the gaskets on a regular basis. Your moka pot will not work well (or at all!) if you use an old or improper sized gasket. The good news? Cupper’s Coffee & Tea has connected people to Bialetti products for more than 30 years. We carry a solid range of Bialetti gaskets for several models, styles and sizes. We also have a range of Grosche products as well.Â
How to Measure a Moka Pot Gasket
Before buying any gasket for your moka pot, it’s critical to be sure you have the right size. To measure your gasket, start with a ruler and compare your gasket to the chart below. We’ve linked the gasket info below to our store to make online ordering in Canada easy for you. While you’re at it, check out our huge fresh roasted coffee collection.

“Moka Pot” is the generic name given to any stove-top espresso style coffee brewer. Bialetti Industries created the original moka pot and set the standard for the design. The Bialetti Moka Express is very iconic with it’s mustachioed man logo. It’s displayed in design museums around the world, including the Museum of Modern Art in New York City.
Bialetti Express Moka Pot Sizes
# of Cups | Inner Diameter | Outer Diameter | Store Link | 1 Cup | 40 mm | 51 mm | Purchase here |
---|---|---|---|
2 Cup | 41 mm | 57 mm | |
3-4 Cup | 50 mm | 65 mm | Purchase here |
6 Cup | 55 mm | 71 mm | Purchase here |
9 Cup | 63 mm | 81 mm | Purchase here |
12 Cup | 74 mm | 90 mm | Purchase here |
18 Cup | 74 mm | 92 mm |
Bialetti Musa Moka Pot Sizes
# of Cups | Inner Diameter | Outer Diameter | 1-2 Cup | 42 mm | 52 mm |
---|---|---|
4 Cup | 51 mm | 65 mm |
6 Cup | 56 mm | 72 mm |
10 Cup | 69 mm | 85 mm |
Bialetti Venus & Kitty Moka Pot Sizes
# of Cups | Inner Diameter | Outer Diameter | 1-2 Cup | 42 mm | 52 mm |
---|---|---|
4 Cup | 51 mm | 65 mm |
6 Cup | 56 mm | 72 mm |
Grosche Milano Moka Pot Sizes
# of Cups | Inner Diameter | Outer Diameter | 3 Cup | 50 mm | 65 mm |
---|---|---|
6 Cup | 55 mm | 73 mm |
9 Cup | 64 mm | 82 mm |
10 Cup | 69 mm | 85 mm |
Gasket Sizing Chart
In addition to measuring your gasket, you can also download our Bialetti Gasket Size Guide. This handy chart can help find the right size for your gasket.

To use the chart first download the Bialetti Gasket Size Guide. Print it off at 100% size so it’s accurate. Use the ruler across the top to be certain the size of the print is accurate. Line up your old gasket with the guide to find out which size you need. And please feel free to share our gasket sizing chart with any of your Moka Pot friends.