As with any brew method, you want to use filtered or spring water (or filtered) that is between 195-205 degrees F (about a minute off a boil)
The AeroPress grind should be fairly fine, a bit more fine than your regular coffee maker. As always, grindwhat you need when you need it. The finer the grind, the quicker it stales
STEP TWO: THE DOSE
For the dose, we use 28 grams for the full volume of the AeroPress. We dosed it out to be about two scoopfuls of coffee (the scoop that came with your AeroPress). Hint: the filter basket is about the same volume as the scoop, so don't worry if you can't find the scoop.
STEP THREE: THE POUR
This is where it gets interesting. Take your AeroPress and flip it upside down without the screw-on filter basket. The plunger is on the bottom, the threaded part is on top (see picture at left). For a full cup, make it so the rubber plunger is inside the cylinder just enough to create a good seal.
Add your coffee. Make sure it rests evenly on the plunger. If you have a timer (or phone with stop watch), set it to three minutes.
Simultaneously, start the timer and start slowly pouring. At first, add just enough water to saturate the grinds then pause for a moment. It may "bloom" or bubble a bit, which is fun to watch. Once done with the bloom (around the 30 second mark), finish pouring to the top by the 1:00 mark.
STEP FOUR: THE WAIT
While you're waiting, pre-wet the filter. This gets rid of any papery taste that might come off the filter and also makes sure that your tasty coffee oils won't get trapped in a dry filter.
Once you've saturated the filter, screw on the filter basket to the top of the still inverted AeroPress. Your countdown is almost over...
STEP SIX: ENJOY IT
The actual volume of the AeroPress is only about 8 oz, so don't be surprised if you didn't fill your mug. At this point you will be looking at a dense shot of coffee. For espresso drinkers, this will be right up your alley. If you're NOT a regular espresso drinker, you may want to water it down a little bit.
However you choose to drink it, don't be afraid to play around with extraction time, dose, and grind.