What is the Difference Between a Thermal Coffee Carafe and a Glass Coffee Carafe?
When you buy an automatic drip coffee maker, you’ll have to choose between two main types of coffee carafes. The glass coffee carafe has been one of the most common types associated with coffee makers. On the other hand, you’ll now see many coffee makers that feature thermal carafes, which are not transparent, and are usually made of metal. Is one better than the other? It really depends on your needs.
The thermal coffee carafe has a top you can close, and because these are usually made of metal like stainless steel, you can’t see how much coffee is in the pot, or use it to accurately measure cups you’d like to make. The big advantage with this type of pot is that when used correctly, it can keep coffee warm for a long time without additional heat. If you like to make one pot in the morning and drink it throughout the day, you’re going to have much better tasting coffee with a thermal coffee carafe.
With glass carafes, you typically have to keep the coffee warm by keeping it on a heated plate. Thermal carafes lack this option. The trouble with warmed coffee is that it tends to get stronger and bitterer in taste. Coffee that remains on heat will usually taste lousy within an hour or two, and if you turn the heat off, the coffee will get very cold quickly.
The other disadvantage to the thermal coffee carafe that some people cite is the easy tendency to really mess up making the coffee. If you don’t place the top of the carafe on accurately, you may spill freshly made coffee all over your counter. Since you can’t see the coffee filling the pot, you may not know you’ve put the top on wrong until you’ve got a huge mess to clean.
As long as you carefully put the lid on the carafe, this shouldn’t be a problem. Alternately, you can keep the lid off until the coffee is made, and then put it on the carafe to keep the coffee warm. Usually, coffee in a thermal carafe will stay warm for about six to eight hours without losing its flavor or tasting bitter.