Green Tea vs Coffee: The Caffeine Difference Nobody Explains Properly

A cup of green tea has about 30-50mg of caffeine. A cup of coffee has 80-100mg. That's the obvious difference. But the less obvious one is L-theanine — an amino acid found almost exclusively in tea leaves.

L-theanine changes how caffeine affects your brain. It promotes alpha brain waves (the relaxed, focused state) while caffeine promotes beta waves (the alert, sometimes anxious state). Together, they create what researchers call 'calm alertness' — you're awake and focused, but not jittery.

Coffee gives you a spike and a crash. Green tea gives you a gentle lift and a smooth landing. That's why people who switch from coffee to green tea often report feeling more stable throughout the day.

If you're thinking about switching from coffee to tea, start with our [Organic Green Tea](https://nevisan.in/products/organic-green-tea). It has about half the caffeine of coffee, plus L-theanine for that calm alertness. Your 3pm slump will notice the difference.