Coffee is an ingredient that should never be lacking—whether at home or in a variety of public or private settings, such as at restaurants, corporate offices, and all sorts of centers for reunions. The simple fact of the matter is that everyone enjoys a good cup of coffee—there is probably no other drink in the world that is so universally appreciated and celebrated besides water itself, which is a pretty high standard for coffee to have reached. Especially when considering that in the grand scheme of human history, coffee has only been widely drank and the entire coffee cult has only been formed over the course of the last few centuries (Middle Eastern tribes began the entire love affair about five hundred years ago to be precise).
The technology for coffee brewing has advanced and diversified well beyond that which coffee drinkers could have possibly imagined when the drink first became popular throughout the world. Today nobody roasts their own beans or grinds them either (well, a few do), and pretty much every home in the nation has some sort of automatic coffee maker, whether you're talking about the dinky 1 cup or the larger 4 cup coffee makes (or larger still, for homes with plenty of coffee-loving bellies to please). Yet these days there is a coffee maker for every occasion and for every place, meaning that in just about any situation or setting there is likely to be somebody whipping up a batch of coffee.
Of course, as mentioned, the 4 cup coffee makers (or larger) are home standards, giving just the right size and convenience for personal use. Yet even within this specific item there are several variations: there are built in 4 cup coffee makers or free standing ones; automatic drip-brew varieties that have a pot or other ones that directly employ cups as the recipients (cutting out the extra dirty dish). There are French press coffee makers and there are espresso machines, or there are percolators as well as vacuum brewers.
Due to the tremendous hordes of coffee drinkers out there, it has become necessary to enable large groups of people to enjoy coffee simultaneously—and hence the traditional home 4 cup coffee makers simply couldn't step up for the job. At church receptions and in many office buildings throughout the world, consequently, it is common to see very large and efficient coffee makers that drastically increase coffee serving capacity. Generally these larger coffee makers are percolators, which is simply the simplest and most efficient form of preparing a good cup (these use a simple siphoning technique to get the heated water up to the filter where all the grounds are, and from there gravity simply takes over).
Coffee makers have made it so far that in today's homes, with the right circuiting installed, a person can automatically program their coffee maker to come on at a certain time and turn off at a certain, thereby ensuring that there is a batch being brewed up in all the right moments of the day. Does your coffee maker give you that much freedom?