How Much Caffeine Is in Yerba Mate? (Real Numbers by Format)
Loose leaf in a gourd runs about 30–50mg per serving — but you refill many times — while canned mate is dosed at 120–160mg. Here are the honest caffeine numbers for every way you'll drink it.
By The Yerba Mate Reviews Desk · 8 min · Updated 2026-06-14
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The honest short answer: loose-leaf yerba mate brewed in a gourd contains roughly 30–50mg of caffeine per ~8oz serving — but because you refill the gourd many times in a single session, your total intake adds up well beyond that one number. Tea bags land in a similar or slightly lower range per cup, and canned ready-to-drink mate is dosed much higher: commonly 120–160mg per can.
How you brew it changes the number a lot — the cut of the leaf, the water temperature, and how many times you refill all matter. And mate's stimulant effect isn't caffeine alone: it also contains theobromine, the mild stimulant found in cocoa, which rides along with the caffeine.
For context, general guidance suggests up to about 400mg of caffeine per day is fine for most healthy adults — but that's a population average, not a personal prescription, and pregnant, breastfeeding, or caffeine-sensitive people should aim much lower. Talk to your doctor about what's right for you. This is not medical advice.
The short version
- Loose-leaf in a gourd: roughly 30–50mg of caffeine per ~8oz serving — but you refill many times, so the session total is much higher.
- Tea bags: similar to or slightly less than loose leaf per cup, around 30–50mg.
- Canned RTDs are dosed higher: Guayakí ~150mg/15.5oz, CLEAN Cause ~160mg/16oz, Mateina ~120mg/12oz.
- Mate's lift is caffeine + theobromine (the mild stimulant in cocoa), not caffeine alone.
- What changes it: the cut of the leaf (stemless/fine = stronger), water temperature, brew time, and number of refills.
- Sensible-intake context: general guidance is up to ~400mg/day for most healthy adults — much less if pregnant, breastfeeding, or caffeine-sensitive.
- Drink it warm, not scalding: the IARC classifies very hot beverages (>65°C/149°F) as probably carcinogenic. Let it cool. Not medical advice.
| Format / product | Serving | Caffeine (approx.) |
|---|---|---|
| Loose leaf in a gourd | ~8oz pour (refilled many times) | ~30–50mg per pour |
| Yerba mate tea bag | ~8oz cup | ~30–50mg (similar or slightly less) |
| Guayakí canned mate | 15.5oz can | ~150mg |
| CLEAN Cause sparkling mate | 16oz can | ~160mg |
| Mateina zero-sugar mate | 12oz can | ~120mg |
| Coffee (for comparison) | 8oz brewed | ~95mg |
Yerba mate caffeine by format — real-world ranges. Loose leaf is per single ~8oz pour; you refill many times per session.
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Question 1 of 6
First things first — what are you after with yerba mate?
How much caffeine is in loose-leaf yerba mate?
A single ~8oz pour of loose-leaf yerba mate contains roughly 30–50mg of caffeine — but the gourd is refilled many times, so your session total is what actually matters. Sip for sip, that puts one pour of mate below an 8oz coffee (~95mg).
The reason the per-pour number can mislead is the ritual: you pack a gourd with leaf and pour fresh hot water over it again and again, sometimes for an hour or more. The first pours are the strongest; later refills get progressively weaker as the leaf gives up its caffeine. Add up a full session, though, and your total caffeine can easily rival or exceed a cup of coffee. So the right way to think about loose-leaf mate is per-session, not per-cup.
How much caffeine is in yerba mate tea bags?
A yerba mate tea bag steeped in a cup lands in a similar or slightly lower range than loose leaf — roughly 30–50mg per ~8oz cup. Tea bags are a single-serve, no-gear way to drink mate, and unlike a gourd you don't endlessly refill, so the per-cup number is closer to your actual intake.
The exact amount depends on steep time and water temperature — a longer, hotter steep pulls more caffeine. For most people a bag is a mild, manageable serving, which makes bags a good entry point if you want to taste mate without committing to a full gourd session.
How much caffeine is in canned yerba mate?
Canned ready-to-drink mate is dosed far higher than a single gourd pour — commonly 120–160mg of caffeine per can. That's because RTDs are formulated to a target like an energy drink, not brewed sip by sip. Real examples from the leading brands:
Guayakí canned mate is around 150mg per 15.5oz can. CLEAN Cause sparkling mate is around 160mg per 16oz can. Mateina zero-sugar mate is around 120mg per 12oz can. All three sit above a single 8oz coffee (~95mg), so a can is a strong serving — treat it like one.
It's not just caffeine: the theobromine factor
Yerba mate's lift comes from caffeine plus theobromine — the same mild stimulant found in cocoa and chocolate. Theobromine is gentler and longer-acting than caffeine, and it rides along in every cup of mate.
This combination is part of why drinkers often describe mate's energy as feeling different from coffee's. Be careful with that idea, though: the popular "smoother energy, no jitters" claim is anecdotal, not established science. The theobromine is real and measurable; the subjective "smoother" feeling is reported by many people but hasn't been proven. Either way, the caffeine is doing most of the work, so count it accordingly.
What changes how much caffeine you get?
The caffeine in your mate isn't fixed — the leaf, the water, and how you brew it all move the number. The biggest factors:
The cut: stemless (sin palo), finely-ground mate (the Uruguayan style) brews stronger and more caffeinated-feeling than a con-palo (with-stems) leaf, which is milder. Water temperature: hotter water (still below boiling — boiling water scorches mate and makes it bitter) extracts more caffeine faster. Brew time and amount of leaf: more leaf and longer contact mean more caffeine. Refills: with a gourd, the first pours are strongest and later refills taper off.
That's why two people drinking "yerba mate" can take in very different amounts. If you want to dial it down, use a milder con-palo leaf, cooler water, and fewer refills.
How much yerba mate caffeine is too much?
General guidance suggests up to about 400mg of caffeine per day is fine for most healthy adults — but that's a population average, not a personal limit, and some people should have far less. Pregnant and breastfeeding people are usually advised to keep caffeine much lower, and anyone caffeine-sensitive or on certain medications should be cautious too.
Because a long gourd session and a canned mate both deliver meaningful caffeine, it's worth keeping a rough tally if you drink mate alongside coffee, tea, or energy drinks — it adds up across the day. Signs you've had too much are the usual ones: jitters, a racing heart, anxiety, or trouble sleeping. Talk to your doctor about what's right for your situation — this is general information, not medical advice.
One more thing: drink it warm, not scalding
Separate from caffeine, there's one well-documented caution about hot mate. The IARC classifies drinking any beverage very hot — above 65°C (149°F) — as probably carcinogenic to humans (Group 2A). The risk is tied to the heat, not to yerba mate itself, and it's historically associated with mate because mate is traditionally drunk piping hot through a metal straw (bombilla), delivering scalding liquid to the throat.
Questions, answered
How much caffeine is in yerba mate?
Loose-leaf yerba mate brewed in a gourd contains roughly 30–50mg of caffeine per ~8oz pour, but the gourd is refilled many times, so the session total is higher. Tea bags are similar or slightly less per cup. Canned ready-to-drink mate is dosed much higher — commonly 120–160mg per can.
How much caffeine is in a can of yerba mate?
Canned mate is dosed like an energy drink, commonly 120–160mg of caffeine. Real examples: Guayakí is around 150mg per 15.5oz can, CLEAN Cause around 160mg per 16oz can, and Mateina around 120mg per 12oz can. All three are above a single 8oz coffee (~95mg).
Does yerba mate have more caffeine than coffee?
Per cup, usually less — a single ~8oz pour of brewed mate is about 30–50mg vs roughly 95mg for an 8oz coffee. But you refill a gourd many times, so a full mate session can add up to as much as or more than a coffee. Canned mate (120–160mg) is higher than a single coffee.
What makes yerba mate's caffeine feel different?
Mate contains both caffeine and theobromine, the milder, longer-acting stimulant also found in cocoa, and it's traditionally sipped slowly over a long session. Many drinkers describe the energy as smoother than coffee's, but that's anecdotal, not established science. The caffeine is still doing most of the work, so count it accordingly.
How much yerba mate is safe to drink in a day?
General guidance suggests up to about 400mg of caffeine per day is fine for most healthy adults, but that's a population average, not a personal limit. Pregnant, breastfeeding, or caffeine-sensitive people should aim much lower. Because a gourd session and a canned mate both add meaningful caffeine, keep a rough daily tally across all sources, and talk to your doctor about your situation. This is not medical advice.
What affects how much caffeine is in your mate?
The cut (stemless/finely-ground sin-palo mate is stronger than milder con-palo leaf), the water temperature (hotter extracts more, but never use boiling water — it scorches mate), the brew time and amount of leaf, and how many times you refill a gourd (first pours are strongest, later refills weaken). Separately, let hot mate cool below 65°C/149°F before drinking, per the IARC very-hot-beverage caution.
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