Coffee Knowledge
Latest articles, industry insights and brewing guides
Drinking 4 Cups of Coffee Daily May Cut Diabetes Risk
Research from Huazhong University finds 4 daily cups of coffee may reduce diabetes risk by 50% by suppressing harmful protein changes.
How Caffeine Can Worsen PMS Symptoms
Caffeine may intensify PMS symptoms like irritability and breast tenderness. German experts recommend reducing intake during your cycle.
Could Coffee Be a Cause of Rheumatoid Arthritis?
New research suggests a link between high coffee intake and a higher risk of developing rheumatoid arthritis, though causation remains unproven.
Can Too Much Coffee Hurt Male Libido?
Drinking excessive coffee or caffeinated drinks may lower sex drive and impair male erectile function, especially when intake is too high.
Why Three-in-One Instant Coffee Is an Industrial Product
Three-in-one instant coffee is a mix of sugar, coffee fat, and low-quality coffee. It has more fat and sugar but less protein and caffeine than brewed coffee.
Why Coffee Doesn't Always Boost Your Energy
Research shows coffee may not increase motivation—and can even make driven people feel less alert. Find out who actually benefits.
Exercise and Coffee Together May Help Prevent Skin Cancer
New research shows combining exercise with coffee intake can reduce skin cancer risk by up to 62% in mice, thanks to lowered inflammation.
Can Too Much Caffeine Trigger Atrial Fibrillation?
Excessive caffeine, alcohol, or stress may increase your risk of atrial fibrillation, a heart rhythm disorder affecting up to 1% of people.
How Coffee Wakes You Up But Hurts Memory
Two cups of coffee may boost alertness but can temporarily impair word recall and memory access, says Italian research.
How Coffee Lowers Blood Pressure — And Why Smoking Cancels It Out
Drinking coffee regularly may lower blood pressure — but only if you don’t smoke. Swiss research finds enzymes and habits affect the benefit.
The Best Time of Day to Drink Coffee
Learn the optimal times to drink coffee based on season and health risks, and understand how coffee affects sleep, hormones, and heart health.
Can People with Vitiligo Drink Coffee? What Experts Say
Research shows moderate coffee intake has no negative effects on vitiligo. Here’s what science and dermatology suggest for coffee-loving patients.
Japanese Study Finds Caffeine Can Treat Dry Eye Syndrome
Japanese researchers found that caffeine increases tear production in dry eye patients. The effect depends on individual caffeine metabolism.
Daily Coffee and Lower Mortality in Older Adults
A 14-year U.S. study of 400,000 seniors finds those drinking multiple cups daily had lower death rates than non-drinkers.
How Coffee Affects Women’s Health: Risks & Studies
Research links high coffee intake in women to infertility, heart risk, osteoporosis, pregnancy complications, and diabetes. Key numbers inside.
Why Coffee Drinkers Should Eat More High-Calcium Foods
Coffee can increase calcium loss and affect sleep, especially for those with high blood pressure. Learn how to balance your intake with high-calcium pairings.
Should Women Avoid Coffee During Their Period?
Experts advise against drinking coffee during menstruation due to increased risk of cramps and mood swings from caffeine’s effects.
Daily Coffee Drinkers Live Longer, Study Finds
Drinking 2–6 cups of coffee daily may lower death risk by up to 16%, says NIH study of 400,000 people. Here’s what we know.
Natural vs Washed Coffee Processing Explained
Learn how natural (sun-dried) and washed coffee processing methods affect flavor, moisture, and quality in specialty coffee beans.
What Makes a Perfect Espresso Shot?
Learn how expert baristas craft the ideal espresso—50–55 beans, rich crema, balanced extraction—with precision grind, pressure, and fresh roast.