How much caffeine is in The Republic of Tea tea?
According to The Republic of Tea, a serving of tea contains 10–123 mg of caffeine (depends on the product).
That is 59% of an average cup of filter coffee (96 mg).
Products and caffeine
| Product | Type | Caffeine per serving | Serving | mg / 100 ml | Source |
|---|---|---|---|---|---|
| HiCAF Caramel Black Tea | Black | 123 mg | 177 ml | 69.5 | Manufacturer page |
| HiCAF blends (up to) | Black | up to 150 mg | 177 ml | – | Manufacturer page |
| Black tea (average) | Black | 50 mg | 177 ml | 28.2 | Manufacturer page |
| Green tea (average) | Green | 25 mg | 177 ml | 14.1 | Manufacturer page |
| White tea (average) | White | 10 mg | 177 ml | 5.6 | Manufacturer page |
| Decaf tea | Decaf | 2–4 mg | 177 ml | 1.7 | Manufacturer page |
Frequently asked questions
How much caffeine is in The Republic of Tea tea?
According to The Republic of Tea, a serving of tea contains 10–123 mg of caffeine (depends on the product).
Does The Republic of Tea tea have more caffeine than coffee?
Usually not: a cup of tea typically has less caffeine than a cup of filter coffee (about 96 mg), but it depends on the product, amount and steeping time.
Is the caffeine amount always the same?
No. It depends on the batch, the amount of leaf and steeping time, which is why we show ranges. Only the manufacturer can confirm an exact figure.
Also useful
Try it
Sources
Sources are linked next to each product in the table.
Data collected 2026-10-24. Recipes change, so check the figure on the pack as well. General information, not medical advice.