Decaf coffee: how much caffeine is left?
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Decaf coffee is not completely caffeine-free. A 200 ml cup of decaffeinated coffee contains about 4 mg of caffeine, compared with about 90 mg in the same cup of regular filter coffee, according to the European Food Information Council (EUFIC). Decaffeination removes most of the caffeine from the beans, but a small amount stays.
Key points
• Decaf coffee: about 4 mg of caffeine per 200 ml cup.
• Regular filter coffee: about 90 mg per 200 ml; instant: about 100 mg per cup.
• "Decaf" means most of the caffeine has been removed, not all of it.
• Several cups of decaf still add a little to your daily caffeine total.
Table of contents
- How much caffeine is in decaf coffee?
- How coffee is decaffeinated
- Decaf vs regular coffee, tea and energy drinks
- Decaf and your daily caffeine total
- FAQ
How much caffeine is in decaf coffee?
EUFIC lists about 4 mg of caffeine in a 200 ml cup of decaffeinated coffee (EUFIC). The exact amount depends on the beans, the decaffeination process and how strong the coffee is made. A large decaf from a coffee shop, or a decaf espresso-based drink with extra shots, can contain a little more.
How coffee is decaffeinated
Caffeine is removed from the green (unroasted) beans before roasting. The main methods are:
- Water process: the beans are soaked in water, and the caffeine is filtered out of the water.
- Carbon dioxide (CO2) process: pressurised CO2 draws the caffeine out of the beans.
- Solvent process: a food-approved solvent such as ethyl acetate removes the caffeine, and is then removed from the beans.
None of these removes 100% of the caffeine, which is why decaf still contains a small amount.
Decaf vs regular coffee, tea and energy drinks
| Drink | Serving | Caffeine |
|---|---|---|
| Decaf coffee | 200 ml | about 4 mg |
| Filter coffee | 200 ml | about 90 mg |
| Instant coffee | 1 cup | about 100 mg |
| Espresso | 60 ml | about 80 mg |
| Tea (black or green) | 1 cup | about 75 mg |
| Energy drink | 250 ml | about 80 mg |
Work out your own total: caffeine calculator.
Sources: EUFIC (decaf, filter, espresso), NHS (instant coffee, tea, energy drink).
More: How much caffeine is in an espresso? · Caffeine in coffee vs tea vs green tea
Decaf and your daily caffeine total
For healthy adults, up to 400 mg of caffeine a day from all sources is unlikely to cause adverse effects, and the limit for pregnant women is 200 mg a day (Food Standards Scotland and the FSA, 2024). At about 4 mg a cup, decaf adds very little, but it is not zero. More: How much caffeine is too much? · Caffeine in pregnancy: UK guidance
If you want a known amount instead of guessing, look for products that state caffeine per serving. Optimal Native caffeine pouches state it per pouch: Morning Energy 200 mg, Daily Flow 75 mg, and Evening Relax 0 mg. More: Caffeine pouches in the UK.
FAQ
Is decaf coffee caffeine-free?
No. It contains a small amount, about 4 mg per 200 ml cup.
How much caffeine is in decaf compared with regular coffee?
About 4 mg vs about 90 mg in a 200 ml cup of filter coffee.
Is decaf instant coffee different?
Decaf instant is also made from decaffeinated coffee and contains a small amount of caffeine. Check the jar for details.
Does decaf tea have caffeine?
Decaffeinated tea also keeps a small amount of caffeine.
Read next: Caffeine in an espresso · Caffeine in matcha vs coffee · How much caffeine is too much?
Optimal Native is coming to the UK. One stack for the whole day: Morning Energy, Daily Flow and Evening Relax. Pre-orders ship from 15 December 2026.