Brew A Chemex Like A Champ
These Chemex guidelines are not by any means scientific or perfect, but they will lead to a damn good cup of Coffee.
1.) Rinse out your Chemex & throw in the filter (I use these square folded filters). Chemex filters are pretty stiff, so if you don't rinse your coffee will taste like notebook paper. If you’re feeling frisky, fold under the corner of the thicker side to create a stronger air flow bridge.
2.) Get some Coffee and grind it on a coarse setting. All grinders are different, but if you think of it on a scale of 1-10 (1=Powder, 10=chunky chunks) I would go for about an 8. The ground coffee should look like a coarse sand when finished, and the particles should hopefully be pretty consistently sized.
3.) Pour your coffee grounds into your rinsed & dumped Chemex, then give the brewer and gentle shake shake shake to even the grounds.
4.) Now for my favorite part, the BLOOOOOM! Boil your water, let it rest for about 10 seconds then pour about a quarter cup slowly & evenly over the coffee grounds. Watch as the grounds expand & soak in the water. You may see a few mini explosions of gas (basically a coffee fart, how cute), releasing some awesome aromas.
5.) After about 30 seconds you will see the bloom come to a stop. Start to slowly pour water over the grounds in a circular motion starting from the middle, and try to avoid hitting the outside filter directly with water. Fill the top of the brewer about 3/4 full then wait for some drainage. You should pulse pour in this way about 3 rounds until your chemex vessel is almost full.
6.) Let the rest of the water drain then toss out the filter and grounds. And well what are you waiting for? Drink it!
If your brew tastes too strong or bitter, lower your Coffee volume on your next brew. It is weak or overly-acidic, increase your coffee volume.