In a coworking space, people from many companies share one kitchen. Coffee needs to be easy to use and easy to account for.
In a coworking space, coffee should be self-service, fast, and not dependent on one staff member. Two models are common: coffee included in the membership, or a device where each person pays for their own drink. The choice depends on how the space bills its members.
Coffee included in membership
This is simplest for members, but the space operator has to manage stock and cleaning. It works best when membership numbers are stable.
Pay per drink
A device that takes cards or phones lets everyone pay only for what they drink. That is how the office setups on the vending for companies (publisher's site) page work.
Shared kitchen rules
Post a short note by the device: how to make a drink, where to put your mug, and who to tell about problems. In a coworking space, that saves a lot of questions.
FAQ
Can member companies' visitors use the coffee? That depends on the space's house rules. Spell it out clearly.
Who handles machine breakdowns? Usually the space operator or the equipment supplier, as set out in the contract.