The short answer: a standard cup of masala chai contains 30 to 50 milligrams of caffeine. That is roughly half the caffeine in a cup of brewed coffee (95-200mg) and slightly more than a cup of green tea (25-45mg).
But "how much caffeine is in chai" is not a simple question, because the answer depends on the type of tea, how long you brew it, the tea-to-milk ratio, and — surprisingly — the spices you add.
Caffeine by Chai Type
| Chai Type | Caffeine (per 240ml cup) | Notes |
|---|---|---|
| Indian masala chai (CTC black tea) | 40-50mg | Strong CTC brew, diluted with milk |
| Chai latte (café-style) | 30-40mg | Less tea, more milk |
| Chai tea bag (commercial) | 25-35mg | Lower tea concentration |
| Chai concentrate (liquid) | 30-50mg | Varies by brand dilution |
| Green tea chai | 20-30mg | Lower-caffeine tea base |
| Herbal chai (rooibos base) | 0mg | Naturally caffeine-free |
| Dirty chai (chai + espresso) | 100-130mg | Espresso adds ~65mg |
These figures are based on USDA food composition data and published analyses of commercial tea products.
Why Chai Has Less Caffeine Than Coffee
Three reasons:
1. Dilution with milk. A standard Indian masala chai is roughly half milk, half water. The tea leaves steep in a smaller volume of water than a straight cup of black tea, and the milk further dilutes the caffeine concentration.
2. Shorter steep time at lower temperature. Most chai is boiled briefly (3-5 minutes), whereas coffee extraction happens under pressure or prolonged steeping. Caffeine extraction increases with time and temperature — pour-over coffee extracts for 4-6 minutes at near-boiling temperatures.
3. Spices may slow caffeine absorption. Research published in the Journal of Agricultural and Food Chemistry has shown that certain polyphenols and compounds in cinnamon and ginger can slow the rate of caffeine absorption in the gut. This does not reduce total caffeine — it spreads the effect over a longer period, which is why chai tends to produce a gentler, more sustained alertness compared to coffee's sharper spike.
How to Reduce Caffeine in Your Chai
- Shorter steeping time. Reducing brew time from 5 minutes to 2 minutes cuts caffeine by roughly 40%.
- First-wash method. Steep tea leaves in hot water for 30 seconds, discard that water, then brew normally. This removes up to 50% of caffeine since caffeine is one of the first compounds to dissolve.
- Use whole-leaf tea instead of CTC. CTC (crush-tear-curl) tea has more exposed surface area and releases caffeine faster. Whole-leaf teas like Darjeeling or orthodox Assam brew with less caffeine per cup.
- Switch to rooibos chai. South African rooibos is naturally caffeine-free and takes chai spices beautifully. It is the only true zero-caffeine option.
- Avoid chai bags marketed as "extra strong." These use finely ground tea dust with maximum surface area — caffeine extraction is highest.
How to Increase Caffeine in Your Chai
If you want more kick without switching to coffee:
- Use CTC Assam tea and steep for 5+ minutes. This maximises extraction.
- Increase the tea-to-water ratio. Use 2 teaspoons per cup instead of 1.
- Make a dirty chai. Add a single shot of espresso to your masala chai — this brings the total to roughly 100-130mg, comparable to a strong cup of coffee.
Chai Caffeine vs Other Drinks
For perspective, here is how chai compares to common caffeinated beverages:
- Espresso (single shot): 63mg
- Brewed coffee (drip): 95-200mg
- Masala chai: 30-50mg
- Green tea: 25-45mg
- Black tea (plain, no milk): 40-70mg
- Coca-Cola (355ml): 34mg
- Red Bull (250ml): 80mg
- Decaf coffee: 2-15mg
Chai sits in a moderate sweet spot — enough caffeine to sharpen focus, not enough to cause jitters in most people. For many people switching from coffee to chai, this is exactly the point.
Caffeine content varies based on preparation method, tea variety, and serving size. The figures in this article are based on USDA data, published food science research, and manufacturer specifications. Individual sensitivity to caffeine varies — consult your doctor if you have specific concerns.