Basic facts about caffeine content and common health considerations across coffee and tea, one fact per card.
30 cards · basic cards · AI-written, checked twice. Edit anything.
- How much caffeine is in a typical cup of brewed coffee?
- Approximately 95 milligrams per 8-ounce cup
- How much caffeine is in a cup of black tea?
- Approximately 25-50 milligrams per 8-ounce cup
- Which beverage has more caffeine per cup, coffee or black tea?
- Coffee, with roughly double the caffeine
- What is the recommended daily caffeine limit for healthy adults?
- Approximately 400 milligrams per day
- When does caffeine reach peak levels in the bloodstream?
- 30-60 minutes after consumption
- What is the half-life of caffeine in the human body?
- Approximately 5-6 hours
- How much caffeine remains in decaffeinated coffee?
- Approximately 2-5 milligrams per cup
- How much caffeine is in a single espresso shot?
- Approximately 63 milligrams per 1-ounce shot
- Does longer brewing time increase caffeine extraction?
- Yes, longer brewing extracts more caffeine from leaves or grounds
- Does hotter water extract more caffeine during brewing?
- Yes, hotter water increases caffeine extraction
- How much caffeine is in a serving of matcha tea?
- Approximately 70 milligrams per serving
- How much caffeine is in green tea?
- Approximately 25-50 milligrams per 8-ounce cup
- How much caffeine is in white tea?
- Approximately 15-30 milligrams per 8-ounce cup
- What is L-theanine?
- An amino acid naturally found in tea that promotes relaxation and focus
- Why does tea typically cause less jitteriness than coffee at equal caffeine doses?
- Tea contains L-theanine, which promotes calm focus and moderates caffeine's effects
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