If you are lucky the gasket will still be intact after you remove it. However the gasket may be hard as a rock and difficult to remove.

You may need to use the awl and a hammer to split the gasket into pieces before removal.

Careful not to damage the brass grouphead when splitting the gasket.

It's time to clean the bottom of the grouphead.

We like to pour about a 1/2 tsp of coffee cleaner on the bottom of the grouphead.