Coffee News Club: Week of June 22

Greenhouse coffee is harder to grow than you think. Plus, coffee pods become more sustainable, but you need to buy a new machine to use them.
by Fionn Pooler | June 22, 2026

Researchers Figured Out You Can Use Sound Waves to Brew Espresso

A team of Australian researchers used ultrasonic soundwaves to brew espresso. They claim the it reduces energy consumption during brewing by 75%.
by Fionn Pooler | June 18, 2026

Twenty Years of the Coffee Barometer

Since 2006, the Coffee Barometer report has monitored and critiqued the coffee industry. After two decades, the latest edition asks: Has anything in coffee changed for the better?
by Fionn Pooler | June 17, 2026

New Report Points to Farmer Inequity, Value Extraction As Critical Coffee Issues

This year's Coffee Barometer report notes that despite a rise in corporate sustainability commitments, structural and systemic problems remain.
by Fionn Pooler | June 16, 2026

Coffee News Club: Week of June 15

Could ultrasonic waves brew your next shot of espresso? Plus, the latest Coffee Barometer report describes persistent sustainability challenges for the industry.
by Fionn Pooler | June 15, 2026

A Decade-Old Kenya Kiriani Showcases the Possibilities of Frozen Coffee

A growing number of roasters are freezing green coffee to preserve freshness and quality. In February, Passenger Coffee released a coffee that had been frozen 10 years earlier.
by Fionn Pooler | June 12, 2026

Caffeine Is Intolerably Bitter. Why Doesn’t It Ruin Coffee?

Most coffee contains between 1 and 1.5% caffeine, the chemical compound responsible for keeping us awake. This might seem obvious, but caffeine is very bitter. Some have described caffeine as tasting “alkaline,” “slightly soapy,”…
by Fionn Pooler | June 11, 2026

Earthquake Wrecks Vital Water Tanks For Many Kona Coffee Farmers

Coffee in Hawaii has been hard hit in recent years. Now, an earthquake has destroyed already-fragile water systems in Kona.
by Fionn Pooler | June 9, 2026

Coffee News Club: Week of June 8

Caffeine is extremely bitter. So why don't we taste that in coffee? Plus, an earthquake in Hawaii destroys water systems and Colombia works to cultivate the next gen of producers.
by Fionn Pooler | June 8, 2026

Your Plane Could Be Powered By Jet Fuel Made From Coffee Grounds

Researchers have been looking for ways to repurpose spent grounds. Now, the Korean government wants to use coffee waste to fuel airplanes.
by Fionn Pooler | June 4, 2026