No matter how small your office, it is still an office, so using a home coffee machine for the purpose would raise some problems in and of itself. Single-serve coffee makers and home drip pod brewers are not of commercial grade. They cannot supply the high volume uses in an office. Therefore, it’s better to invest in a commercial grade coffee maker from the get-go. Your best bet is a 12-cup machine, with an auto-off feature. We strongly advise you against buying an espresso or Italian coffee maker, as they require a lot of maintenance.