not a problem, but a requirement for all meths stoves if you value your fingers that is! NEVER refill a hot meths burner, ALWAYS wait until it is cool enough to handle. the heat alone from a burner COULD ignite the fumes from the fresh meths as you pour it in!
Yup... fully aware of that, i work with ethanol, isopropanol and acetone daily.
Swapped it for the Decagon, which after using for a few weeks in various situations is a huge improvement.
I now have faith in using ethanol type cookers, and it go's with me on every outing
TBL.