FAQ

• How do I pick the right coffee beans?
  Coffee is very subjective. Everyone has their own preferences, and none are incorrect! However, we suggest starting with flavor notes that sound appealing to you. Experiment with flavor notes you’re familiar with, and start to take note of the coffees you like: their origin and processing method (washed, honey, natural, maybe even anaerobic?).
• Do my coffee beans have to have “espresso” in the name, or will any blend / single origin do?
  Again, coffee is super subjective! Very often, roasters add “espresso” or “espresso blend” to the name of their coffee to denote a profile optimized for espresso– but that doesn’t exclude it from being delicious as a pour-over! By that same token, coffees not labeled with “espresso” can be used to make delicious espresso. It all comes down to flavor notes and roast profile, and different flavor notes / roast profiles will lend themselves better to different types of espresso shots (higher or lower ratios, different temperatures, different pressure). Go with what you like and get to experimenting!
• How do I know what setting to grind beans at?
  If you’re an Opus user, there should be a range offered for espresso on the underside of your hopper lid. We would recommend starting with a setting that’s in the middle of your grinder’s espresso range. Adjust your setting to be coarser if your final cup is too bold, chalky, or bitter. Adjust your setting to be finer if your coffee is too sour, watery, or lacking in body aka “weak”. In the coffee world, this process is called “dialing in”.
• What is “channeling”? How can you tell a shot is “channeling”?
  Channeling is generally considered a bad thing. This is the process in which water takes the path of least resistance through grounds, usually through an area where grounds aren’t tightly packed in the portafilter because they weren’t distributed evenly before tamping. You can see this with a bottomless portafilter by looking up at the shot as it pulls. You want to see “tiger striping” or relatively even stripes in color as the coffee comes out, and one steady stream of coffee instead of multiple. It’s harder to see in a shot splitter, but you’ll be able to tell by the thin, weak, and overly bitter taste.
• What is “settling”, and should I settle?
  Settling refers to hitting the bottom of the portafilter (if it’s bottomless) or just the top tip of the bottom of the portafilter (if it’s spouted) against a countertop or hard surface you’re using to tamp in order to bring down or “settle” the grounds into place. This typically closes some air pockets present in the grounds after grinding and before distribution. Whether you settle or not, just make sure to keep it a consistent part of your routine. That way, it is not a variable.
• What do I do if my coffee tastes sour or bitter?
  If your coffee tastes sour, try making your grind setting a bit finer. If your coffee tastes bitter, try making your grind setting a little coarser. Overly sour or watery flavor in coffee often denotes what we call “under extraction”, or not pulling enough flavor from the coffee. Overly bitter, drying, or chalky flavor in coffee often denotes what we call “over extraction”, or pulling too much flavor from the coffee.
• What does “bar” or “bars” mean in reference to espresso machines and shots?
  A bar is a unit of measurement for the amount of water pressure as it passes from an espresso machine through coffee grounds when pulling a shot. Each bar is 1 atmosphere, so 9 bars (standard pressure in an espresso machine) is 9 times the Earth’s atmospheric pressure.