A classic Chemex brewer doesn’t have a burner like a drip machine, nor does it have thermal insulation, so it won’t keep your coffee hot for long. If you want to keep your coffee hot, you have three options: transfer it to a thermal carafe, purchase a Chemex lid (or substitute an appropriately-sized plate), or place the Chemex on your stovetop.
How do you Keep A Chemex warm?
How much Coffee do you put in a Chemex?
A good Chemex ratio to start with is 1:15, or one part coffee to 15 parts water. An 8-cup Chemex can make 40 ounces of coffee, so if you’re brewing a full pot, you’ll need 2.7 ounces of coffee (5.4 tablespoons or 76.5 grams). Try this ratio and taste the results. If it’s not strong enough, increase the amount of coffee.
Why does my Chemex cool my Coffee so slowly?
The coffee in your Chemex cools because the surrounding air is colder than the glass. The air cools the glass, which in turn cools the coffee. Preventing the cold air from reaching the glass wall of your Chemex slows down the cooling process. Wrapping a towel around the Chemex helps prevent cooling, a bit.