At work we have a boiling water dispenser in the break room so I grind up a ziplock bag of enough Mayorgan Been for the work day to take with me and use a Melitta Pour Over brew basket on my own larger cup to brew fresh a cup at a time.
https://shoponline.melitta.com/produ...COFFMKRSPROVER
Melitta has a distrubution center right here in Tampa Bay where they manufacture their filters and have an open house every now and then where you can walk in off the street and purchase direct at a heavy discount.