Twisted Tea has more caffeine than rooibos (red bush) tea on both counts: 30mg per 12 oz bottle against 0mg per 8 oz cup, and about 2mg per fluid ounce against 0. The serving sizes differ, so the table below shows both ways of counting.
rooibos (red bush) tea vs Twisted Tea: the numbers
| rooibos (red bush) tea | Twisted Tea | |
|---|---|---|
| Caffeine per serving | 0mg per 8 oz cup | 30mg per 12 oz bottle |
| Caffeine per fl oz | 0.0mg | 2.5mg |
| Servings to reach 400mg (FDA context) | n/a (caffeine-free) | 13.3 |
Sources: rooibos (red bush) tea's figure is verified in our rooibos (red bush) tea caffeine guide against USDA / naturally caffeine-free herbal (source); Twisted Tea's figure is verified in our Twisted Tea guide against brand data / Caffeine Informer (source).
The concentration gap is the striking part: Twisted Tea packs roughly 250 times the caffeine per ounce. Sipping speed matters at that density; a 12 oz bottle finished in minutes hits differently than the same milligrams spread over a slow cup.
Which one should you pick?
Pick rooibos (red bush) tea when you want the lighter dose or a slower ramp, and Twisted Tea when you actually need the bigger hit and know your tolerance. If you are stacking either with other caffeinated drinks through the day, run the math against the 400mg reference rather than guessing.
For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.
Related reading
- rooibos (red bush) tea: the full caffeine guide
- Twisted Tea: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
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FAQ
Does rooibos (red bush) tea or Twisted Tea have more caffeine? Twisted Tea: 30mg per 12 oz bottle versus 0mg per 8 oz cup for rooibos (red bush) tea.
Which is stronger per ounce? Twisted Tea, at about 2.5mg per fluid ounce versus 0.0mg for rooibos (red bush) tea.
Comparing caffeine? The caffeine comparison tool puts hundreds of drinks side by side, and the caffeine curfew calculator can check your cutoff time for tonight.
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