Hi and thank you for this website and forum!
If one arrives at a hotel and there is a keurig coffee machine in the room, may one use the machine as is or is kashering required? If so can one kasher right away or must one wait? Is the correct way to kasher it by running a empty cycle?
The kashering question is based on the status of flavored coffee and the prevalence of flavored coffee that is actually non kosher.