Use mask!

The last thing you want to do is to contaminate your coffee. To avoid drooling onto coffee grounds, you can do a pretty neat mask out of a coffee filter paper. Just attach two rubber bands onto it with staples, and pull the strings behind your ears.

EDIT:

Folks, this is of course a joke mask ;-)

In Finland there is a huge debate going on this. Masks should be made out of safe materials.

The "official" masks made out of some sort of paper, are supposed to use only once per "session". For example in health care, only for per one visit at the patient/customer.

Some "official" crappy ones sold and shared looks somewhat like this joke coffee filter of mine. The string is attached with some sort of a staple that causes rash to those that has a metal allergy.

If one makes them out of fabric, they are equally supposed to used only one per session. Then the used one should be washed in 90 degrees Celsius, or cooked for five minutes.

Cheap and self made ones are not protecting the user. They are merely supposed to protect others around, if the carrier is having the Covid-19 (or any ither flu or influenza). Those who work for example at home care are asked to wear them especially when in close contact with the customer. In case the caretaker is already infected with no symptoms.

If using a crappy mask for long time, one endangers one's own healthy because of breathing one's own toxic breath (bacteria and carbon dioxide).

And when wearing a mask, one should be very careful with hand hygiene when putting the mask on and removing it.