Cold Brew Knowledge
The Complete Cold Brew Tea Guide
What is cold brew tea? How is it different from hot brew? Does it have caffeine? Everything answered here.
What Is Cold Brew Tea?
Cold brew tea uses cold or room-temperature water to extract the tea's flavour and nutrients, instead of hot water. Tea bags steep in cold water in the refrigerator for 4–8 hours, letting time do the work.
This slow extraction produces a smoother, naturally sweeter brew with noticeably less bitterness — because tannins and caffeine extract more slowly in cold water.
Cold Brew Tea vs Iced Tea: What's the Difference?
| Comparison | Cold Brew Tea | Iced Tea |
|---|---|---|
| Brewing | Cold water, 4–8 hrs | Hot brew + ice |
| Taste | Smooth, naturally sweet | May be bitter |
| Caffeine | Lower | Higher |
| Dilution | None (no ice needed) | Dilutes as ice melts |
How to Make Cold Brew Tea
- 1
Add tea bag
Place 1–2 cold brew tea bags into a sealed bottle or pitcher.
- 2
Pour cold water
Add 500ml of cold or iced water — no hot water required.
- 3
Refrigerate
Seal and refrigerate for 4–8 hours, or overnight.
- 4
Remove and enjoy
Remove the tea bag and drink. Keeps refrigerated for 2–3 days.
Does Cold Brew Tea Have Caffeine?
Yes, but less than hot-brewed tea. Cold water extracts caffeine more slowly, so a 500ml Sosia Tea cold brew contains approximately 20–40mg of caffeine — far less than a cup of coffee (80–120mg).
For those sensitive to caffeine or who want a relaxing evening drink, cold brew tea is a gentler choice than coffee.
Related Guides
Try It Yourself