There are a lot of different ways that you can brew filter coffee. Although it has a funny name that you mightn’t have heard of before, batch brew is by far the most popular in a café setting. Most cafés don’t have time to fiddle around with delicate pour overs or hand brews, so opt to use a machine to brew litres of filter into a thermos. This gives them better consistency, workflow, and, if they’re using good coffee and a quality brewer, can yield very tasty brews. The main thing to look out for is that the coffee is served while it’s still fresh – within a couple of hours – and that the thermos pots are kept nice and clean inside.
It's a good, reliable choice if you like black coffee, and many specialty cafés will be using higher quality coffees for filter coffee than for espressos.