Coffee Knowledge
Latest articles, industry insights and brewing guides
Can Coffee Relieve Pain? The Truth About Caffeine’s Analgesic Effect
Caffeine has mild pain-relieving properties and is often mixed with other analgesics, but it can raise blood pressure and disrupt sleep—especially for those with hypertension.
Can You Drink Coffee During Your Period?
Experts advise against drinking coffee during menstruation due to caffeine’s effect on cramps, mood, and vitamin B levels. Here’s what the science says.
Does Drinking More Coffee Help You Live Longer?
Drinking 2–6 cups of coffee daily may lower death risk by up to 16%. Research links coffee to reduced risks of heart disease and improved longevity.
Coffee Grounds Can Absorb Toxic Hydrogen Sulfide Gas
Coffee waste effectively absorbs hydrogen sulfide, the gas behind foul sewage smells, thanks to caffeine’s nitrogen-rich structure. Research shows coffee grounds beat activated carbon in sulfur removal.
Can Drinking Coffee Actually Help You Live Longer?
A major 12-year study of over 400,000 people found that regular coffee drinkers had lower risks of death from multiple causes.
How Coffee and Cola Affect Children’s Health
Coffee and cola both contain caffeine, which can harm children’s development, sleep, focus, and bone health. Here’s what science says.
How Night Owls Can Drink Coffee Without Losing Sleep
Research shows caffeine disrupts sleep mainly in early birds, not night owls. Find out who should avoid late-day coffee based on your body clock.
Starbucks' Highest-Sugar Drinks Ranked Worst for Health
Two Starbucks blended drinks top a list of the worst coffee beverages due to extreme calorie and sugar content—up to 640 calories per serving.
Two Cups of Coffee Daily Linked to Lower Heart Failure Risk
Drinking two cups of coffee per day may reduce your risk of heart failure by 11%, according to a U.S. study of 150,000 people.
Why Coffee and Tea for Breakfast Make You Hungry Faster
Medical studies show caffeine in coffee and black tea spikes adrenaline, causing a quick energy burst that fades fast — often leaving you hungry by mid-morning.
Best Time to Exercise After Drinking Coffee
Drinking coffee 40 minutes before exercise boosts alertness and performance—but avoid drinking too much or working out immediately.
How Coffee Lowers Your Risk of Skin Cancer
Drinking 3+ cups of caffeinated coffee daily may cut your risk of basal cell carcinoma by up to 21%, according to Harvard research.
Drinking 5 Cups of Coffee Daily Cuts Female Fertility in Half
A Danish study found women consuming 5+ cups of coffee daily had a 50% lower chance of conceiving during IVF. Keep intake under 200mg caffeine for fertility.
How Caffeine May Help Ease Parkinson’s Symptoms
A McGill University study finds daily caffeine intake equivalent to 2–4 cups of coffee improves movement in Parkinson’s patients.
Essential Specialty Coffee Terms Every Coffee Drinker Should Know
Learn the key specialty coffee flavor and texture terms—like acidity, body, and bitterness—in clear, practical definitions used by pros.
How Turkish Coffee Is Made and Why It’s Still Served Unfiltered
Learn how traditional Turkish coffee is brewed in a copper ibrik, served unfiltered with grounds, and why it carries deep cultural meaning in the Middle East.
Vienna’s Legendary Coffee Culture: Origins, Cafés & Customs
Explore Vienna’s deep-rooted coffee traditions, iconic cafés like Café Central, and how a 17th-century Polish spy helped spark a 40+ drink menu.
How Coffee First Came to Japan and Evolved Over Time
Coffee reached Japan in the 1600s via Dejima in Nagasaki but didn’t gain traction until the Meiji era. Learn how Japan’s coffee culture grew from a foreign novelty to a national staple.
How Much Coffee Is Healthy? The Facts on Caffeine Intake
Most studies show moderate coffee consumption is safe and beneficial for healthy adults. Here’s what science says about dosage and effects.
What Makes Kopi Luwak the World’s Most Expensive Coffee?
A 20g pack of Kopi Luwak sells for 380 yuan. Learn why this Indonesian civet coffee costs up to $1,400 per cup.