Sour vs stale, and different types of stale?

Sour vs stale, and different types of stale?

Pick Your Pourover: Comparing and Contrasting the Most Popular Models

The Hario V60, Kalita Wave, and Chemex are three of the most popular pourover devices. Today, we’re comparing the three to help you determine which is the right choice for you. BY EMILY MENESES BARISTA MAGAZINE ONLINE Featured photo by Julien Labelle via Unsplash Ah, the pourover—this tried-and-true form of brewing is sacred in the […]


Cup of Excellence to Offer El Salvador Immersion Program

The immersion experience will allow participants to grow their knowledge on Salvadoran culture and coffee varieties. BY J. MARIE CARLANBARISTA MAGAZINE ONLINE Photos courtesy of Cup of Excellence Cup of Excellence is launching a new learning opportunity in 2024: the Origin Immersion Program, to be held in El Salvador from February 26 to March 5. […]


Out Now: The February + March 2024 Issue of Barista Magazine!

In our new issue we feature Lisa Lawson from Glasgow, Scotland, take a look at the newest grinders, explore spring drink inspiration, see how more women are getting involved in coffee tech, and much more! BY SARAH ALLENBARISTA MAGAZINE We’re stoked to announce the release of the February + March 2024 issue of Barista Magazine, […]


In Tbilisi, Parsek1 Merges Comic Books with Specialty Coffee

We take a look at how this innovative café has changed the face of comics and coffee in the capital of Georgia. BY VASILEIA FANARIOTISENIOR ONLINE CORRESPONDENT Photos courtesy of Parsek1 When it comes to coffee and comic books, Japan is a longtime leader in the field. Manga cafés have been around for decades, combining […]

Sour vs stale, and different types of stale?

Brewing at Home and on the Road with Justin Pierce

In this series, we ask coffee professionals how they like to drink their coffee while at home and when traveling. BY TANYA NANETTISENIOR ONLINE CORRESPONDENT Feature photo courtesy of Justin Pierce Coffee professionals tend to spend most of their days brewing coffee. Baristas brew coffee behind the bar for their customers. Roasters brew it to […]


PRF El Salvador announces speakers and panellists

Following a call for applications in October 2022, Producer & Roaster Forum (PRF) has announced its first speakers and panellists for PRF El Salvador. The two-day forum will be held on 16 and 17 March 2023 at the Salamanca Exhibition Centre in San Salvador. The event is set to return to El Salvador after it […]


4 Cool Cafés to Try Out in Bologna

Bologna, the Italian city home to the world’s oldest university, is traditionally famous for its food and drink—and it has some stellar specialty cafés. BY TANYA NANETTI SENIOR ONLINE CORRESPONDENT Featured photo by Annie Spratt via Unsplash Bologna is home to the oldest university in the world and is the unofficial “capital“ of the porticos […]


Serving Coffee in the Epicenter

The Turkish specialty-coffee community is coming together to support earthquake relief. BY MICHAEL BUTTERWORTHSPECIAL TO BARISTA MAGAZINE ONLINE When Niji Coffee went live on Instagram, it felt as though the entire Turkish specialty-coffee community was watching with bated breath. Niji Coffee made a name for itself in the Turkish specialty-coffee scene when, as a relatively […]

Sour vs stale, and different types of stale?

Oklahoma’s T3 Roasters Completes a Historic Opening

Oklahoma-based coffee company T3 Roasters has opened a flagship brick-and-mortar roastery and coffee bar called T3 Coffee Co., inside a thoroughly remodeled historic building in downtown Collinsville. The building is…


Medium-sized farms play an important role in specialty coffee

For many consumers and industry professionals, specialty coffee and direct trade are inextricably linked. Building strong and mutually beneficial working relationships between producers and roasters is often seen as a cornerstone of establishing a truly sustainable supply chain. So with this association between specialty coffee and direct trade, there can be a narrative of smaller-sized […]


Coffee News Recap, 20 Jan: Last chance to apply for PRF El Salvador Mayorga Scholarship and volunteer positions, World of Coffee Dubai attracts more than 12,000 visitors & other stories

Every Friday, Perfect Daily Grind rounds up the top coffee industry news from the previous week. Here are this week’s stories. Mon, 16 Jan World of Coffee Dubai 2023 attracts more than 12,000 visitors from 48 countries. The event, which was held at the Dubai World Trade Centre, also included over 180 exhibitors and 36 […]


Understanding the Process: Double Fermentation

Continuing our series on coffee processing, we learn about double fermentation, a term that can refer to several different processes. BY TANYA NANETTISENIOR ONLINE CORRESPONDENT Photos courtesy of Cafe Imports Editor’s note: Check out other entries in our “Understanding the Process“ series here. When exploring the wonderful world of high-quality coffee, you’ll discover that no […]

Sour vs stale, and different types of stale?

Sour vs stale, and different types of stale?

minimum dose size?

Jan 31, 2024 |

I use the Hario switch to brew my coffee and am trying to reduce my caffeine consumption. Hence I would like to brew smaller cups of coffee. I am currently using 10g of coffee with 160g of water. (1:16 Ratio) I am wondering if there is a minimum amount of coffee...

Sour vs stale, and different types of stale?

I used to wonder why my coffee was almost always sour. It seems other people have the same problem, so I just want to share my story, my frustration, and my happy discovery.

I'm also curious how other people learned the difference between sour vs stale? And what words you do you use to describe those flavors?

TL;DR- bought a good grinder, bought fresh roasted coffee. Learned that stale sour is different than under extracted sour. Also, old beans stale is different than old grounds stale.

For my home coffee, I used to grind finer and finer and brew hotter and hotter and still have problems with sourness… I was buying grocery store coffee, sometimes preground, and using a cheapo javapresse ceramic burr hand grinder. Also, I'm the only coffee drinker in the house, so it could take weeks or months to use up a bag.

Recently, I learned that what I thought was sour coffee was stale coffee. Under extracted sourness is different. It has a mouth puckering sour feel, not just a sour taste. I'm even thinking that roasted too long ago vs. ground too long ago staleness have different stale flavors.

My timeline of realization went like this: Early December- gifted a bag of roasted in October Intelligentsia beans, put them in the freezer knowing I would get a good grinder soon. Mid December- bought some specialty coffee locally about 5 days after it was roasted. Had the coffee shop grind it for me. I started keeping a journal of tasting notes and brewing methods.

That local coffee tasted a bit harsh for a day or two, then leveled off and was good, then lost its aroma, but tasted okay. This over a week or two. Then I got my 1ZPresso grinder and thawed out the Intelligentsia beans. They were good but just a touch ashy on the finish, if steeped too long. I mostly brewed those for the next couple weeks.

Then I busted the local coffee back out a couple days ago, so it was ground almost a month ago. No aroma to the grounds. Suuuuper sour coffee like I used to always make. Tastes like vegetables. Tastes I don't know, green? Undrinkable. Tossed it all out.

Went back to Intelligentsia, ashy/roasty flavour more evident. Tried a new aeropress recipe with much coarser grind. Totally different! Not as ashy, but…. sour. My mouth felt like I ate sour candy. So that's what sour means!

The beans that were roasted months ago tasted ashy-roasty-sour when fresh ground, the fresh roasted but ground weeks ago coffee tasted plant-sour, and the under extracted coffee tasted (and felt) sour candy sour. Only the last one had the notably different mouthfeel.

Maybe time past roast has more of an effect on purely internal/ time based chemical changes, while time past grinding has more of an effect on just oxidation type changes due to the increased surface area?

I'm starting to experiment and make bad coffee on purpose now. Too hot water, too cold, waaaaay too much coffee, or extreme grind sizes. I hope I learn more about defects this way, and I hope this story helps someone!

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Sour vs stale, and different types of stale?

Perfect Little Beans

Chinmey Hill Coffee uses specialty-grade beans with zero primary defects (such as black beans or sour beans) and less than five secondary defects (such as broken beans). This is important because primary defects will greatly affect the taste of the coffee. Having zero defects allows the coffee to be the most optimal flavor.

Window for Optimal Flavor

Chimney Hill Coffee ships our coffee the same day it was roasted, so you will receive it before it enters the window of optimal flavor.  This means you’ll never miss the opportunity to enjoy the coffee’s peak flavor.

Coffee Ratings

Coffee undergoes many scoring processes by professionals who achieved their Q Grader certification. Coffee is first graded when it’s green. If there are defects the coffee is determined to be “not-specialty grade”. For those coffees that pass green grading, they are sample roasted and cupped. (Cupping is the official term for critically tasting and scoring coffees. The official cupping form is standard worldwide, and where the 100-point scoring system comes from.) A coffee’s dry fragrance, wet aroma, flavor, aftertaste, body, acidity, balance, and overall impression are taken into consideration while uniformity issues and defects, will lower the overall score.

Specialty Coffee

Specialty coffee, coined by Erna Knutsen in 1974, refers to a coffee that receives a quality grading score of 80 percent or higher. While “premium” or “gourmet” seem like they’re synonymous with “specialty,” they simply are marketing terms with no defined standards. Specialty coffees are grown in specific and ideal micro-climates, and have distinctive and unique flavor profiles, with little to no defects.

Third-Wave Coffee

We’re currently in the third wave of coffee. The first wave of American coffee put pre-ground, vacuum-sealed cans in kitchens across America. The second wave started with the late ‘60s introduction of Peet’s coffee (by Alfred Peet) through the proliferation of Starbucks. The third wave of coffee focuses on origin transparency, nuanced flavors, and artisan roasting. The term “third wave” is synonymous with specialty coffee.

Sour vs stale, and different types of stale?

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