People living a century ago didn’t have smartphones in their pockets or computers to sit in front of. They didn’t have televisions, the internet, post-it notes, or sliced bread either. Such revolutionary inventions have reshaped how we function as a society and as a species, but none of them would be possible without the unsung hero of innovation: coffee.

The first coffee filter was invented in 1908 by Melitta Bentz. Exactly how anyone got anything done with any amount of productivity before that is knowledge lost to the ages. These days, however, commercial coffee machines used by many cafés and restaurants are a very advanced piece of technology. Their firmware needs updating and technical malfunctions can and will occur at some point. As such, they require maintenance just like any other device.

A cutting-edge coffee machine malfunctioning is a serious matter, as few devices contribute to making the world go round as much as coffee machines do. So when the local barista can no longer supply people with their cup o’ joe in the morning because something’s wrong with their machine – you know the stakes have never been higher.