It is possible to use too hot of water in the bottom chamber of the Moss Scuttle. When lather gets too hot it can break down. Try using just a tad cooler water in the bottom compartment when you fill the scuttle for the second time.
The Later in my Moss Scuttle Seems to Break Down after Making it, what’s wrong?
How To Use a Moss Scuttle
Using a Moss Scuttle isn't difficult, it takes a couple of extra minutes of effort during your shave routine, but your reward is warm lather for each pass of your face. Click here to read the full instructions for how to use a Moss Scuttle.