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To brew good coffee, many things need to go right.
Most of those are little things: minor nuances in technique, minute details that make good gear work well. All are details that should be kept in focus without losing sight of the full picture:
In order to brew good coffee, one must start with good coffee.
Brewing coffee is like photography. The camera doesn’t create, the sunset, mountains, or that unsightly cell tower. Instead, the skilled photographer use it to carefully compose their shot, finding and emphasizing the beauty of their subject.
In previous installments of “Barista at Home”, we discussed the brewing process and how to choose and use tools to manage the extraction. Today, we’ll focus on the idea that we’re not making a good coffee. Like skilled photographers, we’re finding and celebrating the distinctive beauty already in the coffee bean.
The first step in brewing a good cup of coffee? Start with good coffee beans.
As followers of Dilworth Coffee’s Beanology blog know, the flavors of coffee trace back to both the local roaster and origin country. This makes for a diverse landscape of delicious and distinctive flavors which are the definition of specialty coffee for many people.
While distinctive flavor is prized in coffees, that means that not every coffee drinker will enjoy every coffee. With so many unique coffee experiences are available, it’s important to choose your coffee carefully.
One oft-overlooked source for coffee beans is your neighborhood coffeehouse. This is an excellent place to buy fresh coffee, since they offer the chance to taste some of their options. Even if you don’t enjoy today’s brew, you’ll have a starting point for discussion with your friendly barista about coffees you might prefer.
Like photographing a beautiful sunset, timing is critical with roasted coffee.
From the moment those coffee beans leave the roasting machine, the clock is ticking. With each passing day, irreversible chemical reactions are changing the flavors inside.
This is helpful at first. In the hours right after roasting, too much trapped Carbon Dioxide gas can ruin your extraction like the glare from the sun hovering above the horizon. Gas levels drop quickly, though, and most coffees are ready for drip brewing after 1-2 days of rest, twice that for espresso. From this point forward time is no longer on our side as vibrant flavors begin to fade and change.
Fresh coffees will continue to have trapped CO2, even after initial rest. That’s why skilled baristas begin brewing by first wetting the grounds with a small amount of brewing water, then pausing. Letting the coffee “bloom” for 30-45 seconds gives gasses time to dissipate, helping the rest of the extraction be more effective.
How long is a delicious and distinctive coffee still considered fresh?
The answer is: “as long as they still taste delicious and distinctive”. Like every sunset is unique, every coffee ages differently. Some fade quickly into grey, while others’ seem to glow forever. So “how long?” depends on the coffee. That said, most of what makes fresh coffee so good will have faded noticeably after 3-4 weeks. Could you drink it? Sure. But that blah purgatory is best avoided if you’re looking for delicious brews.
It’s worth noting the difference between “faded” and “stale”. The processes responsible for the negative flavors we call stale are much slower moving, and a coffee will cease to be fresh weeks or months before it begins to be truly stale.
We can delay the inevitable.
While the loss of good coffee flavor is unavoidable, careful storage can slow down the chemical reactions responsible.
Oxygen is great for life, but it’s presence means death for fresh coffee. That’s because one of the reactions linked to flavor loss is oxidation. Since “air” is 21% Oxygen, it’s best to buy coffee in sealed bags, leave them sealed until you’re ready to brew, then roll down and re-close the bag between brews.
That’s another great reason to buy coffee in whole-bean form and grind it immediately before brewing. Increased surface area speeds up oxidation and the other freshness-robbing reactions.
Flavors also fade due to loss of volatile aromatic compounds. Those reactions occur faster at higher temperatures and humidity levels. That’s why we recommend storing your (tightly sealed) coffee bags at cooler room temperature.
Why not the refrigerator and freezer?
While those do provide better storage temperatures, there’s an increased risk of humidity-related problems. We don’t generally recommend storing coffee in the freezer or refrigerator.
Picture perfect results
Want a great cup? Choose a good coffee you enjoy, buy it fresh, store it properly, and brew it well. Then bask in the glow of your coffee’s distinctive beauty.
The gift-giving season is upon us. Need some ideas for your friendly neighborhood coffee geek?
Here’s a hint: home baristas love toys.
Make no mistake, professional baristas can MacGuyver rigs to brew great coffee out of some pretty random household items when needed. Having the right tools can make achieving good coffee easier, more consistent, and much more fun though.
In this second installment of our Barista at Home series, we’ll check out some of our favorite coffee brewing gear. We’ll also pinpoint which brewing essentials these tools use to help you make great coffee at home too.
Turn up the volume with Coffee-to-Water Ratio
A delicious cup of coffee has balance: excellent flavor and enjoyable strength. Strength in this case does not mean a “bold” or bitter flavor, it’s the intensity of the flavor. If coffee were music, strength would be the volume. Our goal is to turn that volume up to create an enjoyable experience without changing the sound, err… flavor quality.
This is pretty straightforward to do: the more ground coffee you use for a given amount of water, the stronger and more concentrated the resulting brew will be. Baristas refer to this recipe as the coffee-to-water ratio.
How strong? Dilworth Coffee recommends using 1 part coffee to 17 parts water (that’s 3.75oz coffee per half gallon, or about 55 grams per liter). With that ratio, and a proper extraction your finished brew should be a crowd-pleasing strength.
How can good coffee brewing gear help?
Most professional baristas count on a scale to weigh out the exact amount of coffee. They’ll also brew on a scale to make sure their water measurements are equally precise.
An accurate kitchen scale works (and is useful for other tasks). That said, I like the built-in timer feature on the Hario v60 Drip Scale. Those looking to splurge might upgrade to the Acai Pearl scale with its Bluetooth functionality.
Fine-tune with Temperature and Turbulence
Unless coldbrew is your thing, you need HOT water for proper brewing. How hot? We recommend 195-205 degree F water for best results. No precision digital thermometer handy? Just bring your water to a boil right before brewing.
While you could boil that water in your microwave, most pros’ coffee brewing gear includes a purpose-built kettle instead.
My go-to electric kettle is from Bonavita. It heats water quickly and features a long pouring spout to help control turbulence (more on that shortly). It’s digital sibling is a nice upgrade, giving you more precise control of the brewing water temperature.
Did I say turbulence? Buckle up, little coffee grounds! For a tasty extraction, we need to keep everything moving and interacting with the water. We describe that movement as turbulence.
The long “gooseneck” spouts on coffee pouring kettles enable the barista to pour with precision. Directing the water so it reaches all of the grounds makes turbulence more uniform.
Those spouts also limit water flow, which helps to control the magnitude of the turbulence. That’s important, since too bumpy of a ride can shake unpleasant flavors loose.
Have some fun with Brewing Devices
Scales and kettles may be useful tools, but brewing devices are where the fun really happens.
Most professional brew bars feature some kind of pourover brewing device, with popular choices including the Hario v60, Kalita Wave, and Beehouse or Bonmac drippers. I’ve enjoyed delicious coffee from all of these, though the Kalita Wave is my go-to method.
What makes the coffee from each of these methods unique? Variations in filter shape are responsible for some of the differences in the cup. Many pro baristas prefer the pointier cone shape of the v60, though flat-bottom or truncated-cone-shaped filters make it easier to consistently brew good coffee.
The number and size of the holes in the bottom of the device also make a difference. This can vary from the single small hole in a Bonmac to the wide-open v60. Like to tinker? Check out the adjustable December Dripper – it’s the hot new brewer of the year and sure to be on your favorite barista’s letter to Santa (hint hint).
No matter which brewer you choose, be sure to select the size that’s appropriate for you. I usually pick the two cup version, which performs equally well whether I’m brewing a single mug for myself or sharing with a friend.
Make your list, check it twice.
Good coffee brewing gear: it’s a good gift idea for the barista at home AND a great way to make better coffee. Want more information on brewing great coffee? Continue with Part 3 of our Barista at Home series, “Start with Good Coffee”. Also check out Dilworth Coffee’s Brewology resources or call Brady at 866 849 1682.
The Holiday Season is upon us. For many of us, that means traveling to visit family and friends. For baristas, chances are good we’ll be waking up early and brewing them coffee once we get there.
What do baristas do differently that makes our coffee taste so good?
Better yet, what can we all do to make better coffee at home too?
Read on, dear friends…
What makes coffee taste so good?
A roasted coffee bean is a treasure chest full of flavorful sugars, aromatics, acids and oils. The goal of brewing is to unlock the best of those flavors and dissolve them into a delicious and drinkable form.
Baristas know that brewing good coffee at home requires good ingredients, the right tools, and an understanding of the brewing essentials.
What are the brewing essentials?
When we brew coffee, we’re putting the process of extraction to work. Water does the heavy lifting. It dissolves flavoring solids, breaking the bigger molecules down, and then helping them diffuse out of the coffee grounds and into our mugs. A good barista fine tunes the flavor of their brew by controlling this extraction.
The coffee bean may be a treasure chest, but not all the flavors inside are treasures. Fortunately, different flavors extract at different rates and less desirable flavors tend to extract more slowly. Our goal is to pull out as many of the tasty flavors as possible before things start to go wrong.
How do we control the extraction to accomplish this?
Seven elements of the brewing process, the brewing essentials, can help us achieve that deliciousness. Today, we’ll consider two important and closely-linked elements: grind setting and brewing time.
The Grind and why it’s so important.
Imagine we’re flavoring solids enjoying a concert at The Grind Auditorium with thousands of our closest friends. As the show finishes, everyone’s nicely dissolved and ready to head to the afterparty. First, though, we need to diffuse our way out of the venue (preferably leaving some of the more obnoxious flavors in the room behind).
Who will make it to the afterparty before the Mug Club reaches capacity?
That depends largely on two factors: our distance to the nearest exit and the time we have to get there. If The Grind has opened an exit in our section, we can exit quickly. If only the more distant main doors are open, though, it will take a while for all of us to make our way outside.
Extraction is similar. The smaller the ground coffee particle, the closer the exits and the faster the extraction occurs. Conversely, the larger the particle, the longer it takes for extraction to happen.
A given particle size has an ideal contact time; the amount of time water is in contact with the ground coffee determines the amount and quality of coffee flavoring solids extracted. Too short for the particle size and you leave flavor behind yielding a sour, underextracted cup. Too long and those unpleasant flavors start to show up, turning our party harsh, bitter, and overextracted.
Understanding these two brewing essentials can help us control the extraction by matching grind setting and brewing time.
While drip brewers do let you control how quickly water is being poured over the coffee grounds, the coffee bed’s resistance determines how quickly that water drains out. This means your total brewing time can’t be directly controlled.
What to do?
An encore at The Grind.
Water drains more quickly through coarser ground coffee and more slowly through finer ground. That means changing grind setting affects the results in two ways: by changing the speed of the extraction process AND influencing the total brew time.
That’s why controlling grind is the easiest and most effective way to fine tune your drip brewing process.
I usually start with the grinder setting recommended by the Dilworth Coffee Brewing Guides, brew a batch, and taste the results. If the coffee tastes bitter and brewing took longer than recommended, I’ll try again with a slightly coarser grind. If it tastes thin and sour and the time was too fast, I’ll use a slightly finer grind.
Let those barista guests sleep in!
With the right combination of grind setting and brewing time, you can manage your extraction like a professional and unlock those tasty flavors for yourself. Just make sure to save them a cup, I hear that show at The Grind went pretty late.
To learn even more about the brewing essentials check out next week’s edition of Barista at Home: Coffee Brewing Gear. Can’t wait that long? Contact Brady Butler at 866-849-1682.