NewsPronto

 
Men's Weekly

.

USA Conversation

The Conversation USA

The Conversation USA

Retaining flavor while removing caffeine − a chemist explains the chemistry behind decaf coffee

  • Written by Michael W. Crowder, Professor of Chemistry and Biochemistry, Miami University
imageSeveral processes can take most of the caffeine out of coffee.AP Photo/John Minchillo

For many people, the aroma of freshly brewed coffee is the start of a great day. But caffeine can cause headaches and jitters in others. That’s why many people reach for a decaffeinated cup instead.

I’m a chemistry professor who has taught lectures on...

Read more: Retaining flavor while removing caffeine − a chemist explains the chemistry behind decaf coffee

More Articles ...

  1. Seafloor sediment reveals previously unknown volcanic eruption 520,000 years ago in south Aegean Sea
  2. Worried about the health effects of the sugar in your breakfast cereal? Little has changed since the days of ‘Unfrosted,’ the Pop-Tarts movie
  3. Counter-drug strategies in Central America are worsening deforestation, threatening many species of birds
  4. Athletes looking for a competitive edge may find it within their gut microbiome
  5. Unequal access to quantum information education may limit progress in this emerging field − now is the time to improve
  6. COVID-19 devastated teacher morale − and it hasn’t recovered
  7. GOP attacks against Kamala Harris were already bad – they are about to get worse
  8. US says it wants Palestinians to have a country of their own – but its actions say otherwise
  9. Amid humanitarian crisis and ongoing fighting, Africa’s war-scarred Sahel region faces new threat: Ethno-mercenaries
  10. How do 9 states get by with no income tax? A tax expert explains the trade-offs they choose
  11. Bob Newhart was more than an actor or comedian – he was a literary master
  12. Bugs thrive in urban Los Angeles – volunteers’ traps reveal biodiversity hot spots for city insects and spiders
  13. Diabetes and obesity can damage the liver to the point of failure – but few people know their risk of developing liver disease
  14. The Yezidi genocide devastated Iraq’s community 10 years ago − but the roots of the prejudice that fueled it were much deeper
  15. Buses weren’t the only civil rights battleground in Montgomery – the city’s parks still reflect a history of segregation
  16. Until 1968, presidential candidates were picked by party conventions – a process revived by Biden’s withdrawal from race
  17. Massive IT outage spotlights major vulnerabilities in the global information ecosystem
  18. What is Catholic Integralism?
  19. Online rumors sparked by the Trump assassination attempt spread rapidly, on both ends of the political spectrum
  20. Biden’s and Trump’s ages would prevent them running many top companies – and for good reason
  21. How the Ukrainians – with no navy – defeated Russia’s Black Sea Fleet
  22. Affordable housing in God’s backyard: Some religious congregations find a new use for their space
  23. Age would prevent Trump and Biden from running many top companies − and for good reason
  24. Why I turned the ‘Red Dead Redemption II’ video game into a history class on America’s violent past
  25. Sports in extreme heat: How high school athletes can safely prepare for the start of practice, and the warning signs of heat illness
  26. Fewer bees and other pollinating insects lead to shrinking crops
  27. Cutting marketing spending often backfires on businesses – new research could help investors distinguish shortsighted cuts from smart ones
  28. Sports in extreme heat: Warning signs of heat illness and how high school athletes can safely prepare for the start of team practices
  29. Long COVID puzzle pieces are falling into place – the picture is unsettling
  30. Voting rights at risk after Supreme Court makes it harder to challenge racial gerrymandering
  31. After more than 40 years, the federal right to free education for immigrant students finds itself in the crosshairs of conservatives
  32. Heritage Foundation’s ‘Project 2025’ is just the latest action plan from a group with an over 50-year history of steering GOP lawmaking
  33. Late bedtimes and not enough sleep can harm developing brains – and poorer kids are more at risk
  34. Republicans wary of Republicans – how politics became a clue about infection risk during the pandemic
  35. Pennsylvania continues tradition as ‘keystone state’ in presidential elections
  36. What the Catholic Church says about political violence and the need to forgive – even would-be assassins
  37. ‘MAGA BLACK’ hats, clear swag bags, the first Trump/Vance signs: Highlights of what the Smithsonian is archiving from the Republican convention
  38. Baby bull sharks are thriving in Texas and Alabama bays as the Gulf of Mexico warms
  39. How Trump’s appeal to nostalgia deliberately evokes America’s more-racist, more-sexist past
  40. AI mass surveillance at Paris Olympics – a legal scholar on the security boon and privacy nightmare
  41. Supreme Court’s blow to federal agencies’ power will likely weaken abortion rights – 3 issues to watch
  42. The Black fugitive who inspired ‘Uncle Tom’s Cabin’ and the end of US slavery
  43. A short history of the rise, fall and return of Detroit’s Michigan Central Station
  44. Stroke survivors may be saddled with an invisible disability known as spatial neglect – but a simple treatment offers significant improvement
  45. Want to spur your child’s intellectual development? Use audiobooks instead of videos
  46. The Large Hadron Collider gets reset and refreshed each year – a CERN physicist explains how the team uses subatomic splashes to restart the experiments
  47. America faces a power disconnection crisis amid dangerous heat: In 27 states, utilities can shut off electricity for nonpayment even in a heat wave
  48. Social media and political violence – how to break the cycle
  49. Nutrition Facts labels have a complicated legacy – a historian explains the science and politics of translating food into information
  50. Target just became the latest US retailer to stop accepting payment by checks. Why have so many stores given up on them?