Coffee Knowledge
Latest articles, industry insights and brewing guides
How Late-Day Coffee Affects Your Sleep by Up to 6 Hours
Drinking coffee after 5pm can cut your sleep by up to an hour, with effects lasting six hours. Even a mid-afternoon cup may disrupt rest.
How Long Does Caffeine Keep You Awake? New Study Says 6 Hours
A new study finds caffeine’s stimulating effects last up to six hours, reducing sleep by about one hour if consumed after 5 PM.
How Caffeine Boosts Memory, According to Science
A Johns Hopkins study found caffeine enhances memory retention for at least 24 hours, especially for recognizing similar images.
How Coffee Can Boost Long-Term Memory, Study Finds
Drinking coffee with 200mg caffeine improves memory recall over 24 hours, a Johns Hopkins study shows. Here’s what that means for your daily cup.
How Trees in Coffee Farms Boost Yield and Pest Control
Adding trees to coffee farms can triple bird numbers, cut coffee berry borer damage below 15%, and slightly raise yields, a Jamaica study finds.
How One Daily Cup of Coffee May Prevent Vision Loss
Drinking one cup of coffee daily may lower your risk of retinal degeneration due to aging, diabetes, or glaucoma, says a Cornell study.
How Coffee May Lower Your Risk of Skin Cancer
Drinking or applying coffee may reduce non-melanoma skin cancer risk by killing UV-damaged cells. A US study found a 69% lower tumor rate in treated mice.
How Coffee Slows Hepatitis C Progression, Study Finds
Drinking three or more cups of coffee daily may reduce liver disease progression in hepatitis C patients by 53%, a U.S. study reveals.
How Decaf Coffee Lowers Coronary Heart Disease Risk
Decaf coffee may reduce coronary heart disease risk, while regular coffee’s effect on blood pressure comes mostly from caffeine.
Drinking More Coffee Linked to Lower Prostate Cancer Risk
Men drinking 6+ cups of coffee daily had 60% lower risk of advanced prostate cancer, Harvard study finds. 4–5 cups cut risk by 25%.
Drinking 5 Cups of Coffee or Tea Daily May Cut Brain Tumor Risk
A UK study finds people who drink at least 5 cups of coffee or tea daily have a 40% lower risk of developing glioma, a common brain tumor.
How Coffee Helps Women Retain Memory After Age 70
Drinking over 3 cups of coffee or tea daily helps older women maintain memory test scores over years—especially verbal recall—per a French study.
Drinking Coffee Linked to Lower Head and Neck Cancer Risk
Regular coffee drinkers have a 39% lower risk of oral and throat cancers, with stronger effects seen at four or more cups daily.
How Four Cups of Coffee a Day Cuts Women’s Gout Risk in Half
Drinking four or more cups of coffee daily may reduce women’s risk of developing gout by up to 57%, according to a 26-year Harvard study.
How Drinking Coffee Lowers Women’s Gout Risk
Drinking four cups of coffee daily may cut women’s gout risk by 57%, study finds. Decaf works too — here’s what the science says.
Daily Coffee Linked to Living Past 90, Greek Study Finds
Greek islanders who drink 1–2 cups of black coffee daily show better artery health and lower disease rates. Here’s what the science says.
How Coffee Lowers Gallstone Risk: New Study Findings
Drinking 4+ cups of coffee daily may cut gallstone risk by 45% in men, a 10-year study of 46,000 finds. Black coffee works—decaf and tea don’t.
Adding Sugar to Coffee Boosts Memory and Focus
Drinking coffee with sugar improves memory and attention span more than black coffee or sugar alone, says a Spanish study.
How Drinking Coffee and Tea May Lower Kidney Cancer Risk
Drinking three or more cups of coffee daily may reduce kidney cancer risk by 16%, and one cup of tea by 15%, a Harvard study finds.
Why Caffeine Boosts Women More Than Men Under Stress
Research shows caffeine improves women’s stress-test performance more than men’s—especially in memory and puzzle-solving tasks.