Seeking instant test for rough caffeine level in coffee

Seeking instant test for rough caffeine level in coffee

Bypass coffee brewing: How can it improve extraction?

There is a lot of science to brewing coffee. Whether knowingly or unknowingly, we trigger – and try to control – an almost endless number of chemical reactions to achieve the perfect extraction. To do so, we have to tweak different variables – such as grind size, temperature, and coffee-to-water ratio – to get the […]


Coffee News Recap, 26 Jan: Researchers create new genetic map to “future proof” arabica production, UAE & Italian Coffee Champions crowned at WoC Dubai and SIGEP & 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: competitions. Mon, 22 Jan Timemore launches crowdfunding campaign for upcoming Millab E01 portable electric coffee grinder. The wireless electric coffee grinder features a 5,000 mAh lithium battery […]


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 […]


Girlsplaining Workshop Unites Women in Coffee in Quito, Ecuador

Meet Camila Khalifé, the brains behind Girlsplaining, a unique coffee learning experience with an emphasis on creating space for women in the industry. BY JORDAN BUCHANANSPECIAL TO BARISTA MAGAZINE Photos courtesy of Camila Khalifé Men may hold most of the positions of authority and teaching roles within the specialty-coffee industry, but Camila Khalifé, the owner […]

Seeking instant test for rough caffeine level in coffee

Know Your Sweeteners: Honey: Part One

Not all sweeteners are made equal! In this series, we’ll take a closer look at different types of sweeteners and syrups—starting with honey. BY EMILY JOY MENESESBARISTA MAGAZINE ONLINE Featured photo by Arwin Neil Baichoo via Unsplash Though you can’t go wrong with simple syrup or the tried-and-true vanilla, there are many options when it […]


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 […]


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 […]

Seeking instant test for rough caffeine level in coffee

4 Cool Cafés to Try Out in Kuala Lumpur

The Malaysian capital is often visited in a hurry, but visitors who take the time to explore will discover a welcoming city, thanks in part to its friendly specialty cafés. BY TANYA NANETTI SENIOR ONLINE CORRESPONDENT Photos by Tanya Nanetti Kuala Lumpur, the capital of Malaysia, is often a stopover on vacations, quickly left behind […]


Three Questions with IWCA Executive Director Blanca Castro

When International Women’s Coffee Alliance (IWCA) Executive Director began her job years ago at the Guatemalan coffee association Anacafé, she knew next to nothing about coffee.  “I just pretended that…


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 […]


Congrats to the Top-Ranking Qualifiers at U.S. CoffeeChamps Denver

Dozens of coffee professionals competed at qualifiers this weekend in Colorado for coveted spots at the U.S. Coffee Championships next month. BY J. MARIE CARLANBARISTA MAGAZINE ONLINE Cover photo by J. Marie Carlan For competitive coffee professionals in the USA, the U.S. Coffee Championships are the place to be. Over the weekend, the second USCC […]

Seeking instant test for rough caffeine level in coffee

Seeking instant test for rough caffeine level in coffee

minimum dose size?

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...

Seeking instant test for rough caffeine level in coffee

About once a month, some inattentive barista gives me regular coffee by mistake, which is a bummer. I drink decaf. So when I get coffee at a cafe, I'd like to do an instant test of the rough caffeine level by dipping a strip into the coffee. Something analogous to these pH test strips would be ideal:

https://bartovation.com/product/phlitmus/quantitative-ph/pph01b50/

I've searched online without success. A product called D+CAF is long gone.

I'm not interested in methods that test for caffeine in urine or require lab equipment. Cheap and instantaneous is what I'm after.

Do you know of such a product?

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