To Heat Or Not To Heat?
One complaint we often see is that brewers don't keep coffee hot long enough. This, or that they don't brew at a high enough temperature. While we'd never tell someone how to enjoy their coffee, we thought we might share some insight on what's up with all this temperature talk!
Generally, it's agreed that coffee is best brewed at 198-202 degrees Fahrenheit. The reason for this is chemical. It's a complicated topic, but suffice to to say that we can scientifically guarantee that this temperature range produces the best coffee when brewing drip. For some coffee drinkers, that's just not hot enough! We can respect a want for a hotter brew, but the fact of the matter is that high quality drip brewers stick to this temperature range. Cheap brewers often start at lower temps and then shoot up to temps above this range, scorching the coffee. A high quality drip brewer will maintain the ideal temperature the whole way through.
So what's the answer if you want hotter coffee? Really, it's to drink lighter roasts! Darker roasts extract at lower temps, so your cup will get very bitter if brewed too hot. Lighter roasts may lose some complexity at higher temps, but you can enjoy them hotter with less bitterness.
Warming Plat Woes
The other component of this equation is keeping the coffee hot in the pot. First of all, by warming the pot with some hot water before you brew, the coffee will keep its temp as it hits the carafe. This is a huge help, because a room temp put will suck some of that heat as the coffee brews! The other element is carafe type and heating plate. Sometimes we get complaints that high end brewers don't have plates that stay on all day. This is a feature, not a bug! By sitting in a glass carafe on a heating plate, coffee tends to scorch and burn over time, leading to an awful taste. If you plan to drink a pot more than two hours later (the shutoff time for most heating plates) we recommend brewing a fresh one then!
Another option for maintaining heat is to switch to a stainless steel carafe. If pre-warmed, a well insulated stainless carafe can keep coffee hot for hours. This works especially well if your palate doesn't notice the metallic taste!
Of course, all of this changes when you introduce pressure to create espresso!