Science: There’s a right and wrong time to drink coffee

Science: There’s a right and wrong time to drink coffee

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 […]


Breaking New Ground: A Sicilian Coffee Plantation, Part 2

The Morettino family has successfully cultivated a coffee plantation right in Sicily. Next on the agenda: making the island an international coffee hub. BY JOSEPH PHELANSPECIAL TO BARISTA MAGAZINE ONLINE Feature photo by Tomas Anton Escobar via Unsplash Editor’s note: Check out part one of this story here. Andrea Morettino’s family has proven that coffee […]


Breaking New Ground: A Sicilian Coffee Plantation, Part One

The impacts of climate change are starting to be felt in Sicily, but while they’re causing problems, the rising temperatures are also bringing new opportunities. BY JOSEPH PHELANSPECIAL TO BARISTA MAGAZINE ONLINE Featured image courtesy of Henrique Ferreira on Unsplash The Sicilian love affair with coffee is known the world over. Sicily, the largest of […]


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 […]

Science: There’s a right and wrong time to drink coffee

Coffee News Recap, 2 Feb: Applications open for Australia’s Richest Barista 2024, De’Longhi reports 4.6% revenue increase after La Marzocco move & other stories

Every Friday, Perfect Daily Grind rounds up the top coffee industry news from the previous week. Here are this week’s coffee news stories. The word of the week is: expansion. Mon, 29 Jan AeroPress launches limited-edition Clear Pink brewer. The coffee brewer is made from the same Tritan material used in the standard Clear model. […]


The Slingshot Chalice Puts a New Spin on Espresso Dosing

Hong Kong and Australia-based coffee equipment maker Slingshot Technology recently launched the Chalice Distributor Cup, a multipurpose espresso preparation tool for baristas. Displayed in its…


U.S. Coffee Championships 2023 Denver Qualifiers Reach New Heights

The next group of coffee champions moves on to nationals at the Denver qualifiers. BY KATE VAN PETTENSPECIAL TO BARISTA MAGAZINE Photos by Matthew Temple and courtesy of Specialty Coffee Association The high-flying world of U.S. CoffeeChamps competitions reached new heights as coffee professionals flocked to the Denver qualifiers for the 2023 season, hosted in […]


4 Coffee Shops Worth a Visit in Madrid

In recent years, the Spanish capital has developed a vibrant specialty-coffee scene. Here are some cool cafés to visit for a caffeine fuel-up. BY TANYA NANETTISENIOR ONLINE CORRESPONDENT Featured photo by Jorge Fernández Salas via Unsplash The espresso bar at HanSo. HanSo Café, a Perfect Spot for Breakfast   In Chinese, HanSo roughly translates to “a […]

Science: There’s a right and wrong time to drink coffee

The Color of Coffee Collective Symposium Returns for Its Second Year

The collective and the nonprofit Koffee with Keith will hold their second annual symposium in Houston on March 10-12. BY J. MARIE CARLANBARISTA MAGAZINE ONLINE Photos courtesy of the Color of Coffee Collective The Color of Coffee Collective (COCC) is an organization that seeks to promote equity and opportunity for people of color in the […]


Philadelphia’s Café Don Pedro Seeks to Build Up Small Businesses

A Dominican-owned coffee roasting company called Café Don Pedro recently launched in Philadelphia with ambitions for direct trading and boosting more Latino-owned small businesses throughout its supply and distribution networks….


Understanding the Process: Koji Fermentation

Continuing our series on coffee processing, we learn about koji fermentation, a unique process usually associated with the brewing of sake. BY TANYA NANETTISENIOR ONLINE CORRESPONDENT Photos courtesy of Forest Coffee If brewed properly, a cup of coffee can offer countless variations of flavor and aroma. The quality and complexity of these attributes depend on many different […]


Philadelphia’s Café Don Pedro Seeks to Build Up Small Businesses

A Dominican-owned coffee roasting company called Café Don Pedro recently launched in Philadelphia with ambitions for direct trading and boosting more Latino-owned small businesses throughout its supply and distribution networks….

Science: There’s a right and wrong time to drink coffee

Science: There’s a right and wrong time to drink coffee

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...

Science: There’s a right and wrong time to drink coffee

You’re probably drinking coffee at the wrong time

If you read the blog regularly, you’ll know that all of us at Death Wish are pretty much always drinking coffee. Our passion for coffee is mostly a love for the process and taste, but we’d all be lying if we said the caffeine wasn’t a contributor. 

Photo source: CNBC, “Make Time” by Jake Knapp and John Zeratsky

We’ve recently dived into the best time to drink coffee, and science has a lot to say about it. Our bodies operate on a natural circadian rhythm — telling us when to go to sleep, when to wake up, in addition to when we hit our deepest sleep, when we have our fastest reaction time, and more.  


Photo: IES Edmonton

Because of our circadian rhythms, the peak production of cortisol in our bodies is between 8 and 9 a.m. (under normal circumstances). That time frame happens to clash with when we’re taking our first sips of coffee.

This clash means that we’re over-caffeinating when our bodies are already naturally doing it for us. This usually results in a higher tolerance to caffeine and quicker caffeine crashes, which we can all agree are the worst.  

During this rhythm, your body produces cortisol and peaks at certain points. This can be described as your body naturally caffeinating itself. 

Our natural cortisol levels start to drop between 10 and 11, and science says that we should start drinking coffee after these natural cortisol levels start to wear off. Scientists say this is the best way to caffeinate because you won’t experience crashes and your energy levels will remain intact.

In order to figure out (roughly) when your cortisol levels are dropping and peaking, go a day without coffee. (Of course, only a serious cortisol test will tell you your actual levels.) 

Make sure you wake up at the same time as usual, eat as normal, and stay hydrated. Keep a log of the way you feel throughout the day. The times when you start to feel like you’re coming down are the appropriate times to drink coffee from thereon out. Or you could just play it safe and drink coffee all day, every day. 

Related: How to avoid a caffeine crash

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Science: There’s a right and wrong time to drink coffee

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.

Science: There’s a right and wrong time to drink coffee

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