Quick answer
Yerba mate, coffee, and Red Bull all deliver caffeine — but they're not the same drink. Coffee is concentrated caffeine in hot water, plus some bitter compounds. Red Bull is synthetic caffeine in a sweetened (or artificially sweetened) base with taurine and B-vitamins added. Yerba mate is a brewed plant infusion where the caffeine naturally co-exists with theobromine, polyphenols, and saponins — chemicals that slow how the caffeine hits your system.
Typical caffeine per serving:
- Yerba mate (240ml brewed): 70–80mg
- Coffee (240ml brewed): 95–120mg
- Red Bull (250ml can): 80mg
- Sol Maté (330ml can): 40mg
The reason the same dose of caffeine feels different from each is the company it keeps. Coffee's caffeine is unaccompanied — it spikes fast and drops fast. Red Bull's is paired with 27g of sugar (or in sugar-free, artificial sweeteners) which adds its own crash. Yerba mate's caffeine is bound up with theobromine and chlorogenic acids that slow absorption — so it ramps up gentler and tapers cleaner.
Short version:
- Pick coffee if you want maximum kick, fast, and don't mind the bitter or the crash.
- Pick Red Bull if you want sweetness with your stimulant and don't read labels.
- Pick yerba mate (or a yerba-mate-based drink like Sol Maté) if you want sustained energy without the crash, jitters, or 25g of sugar.
Caffeine content compared
Caffeine isn't the whole story, but it's where every comparison starts. Here are the numbers from a typical serving:
| Drink | Serving size | Caffeine | Source |
|---|---|---|---|
| Brewed coffee | 240ml (8oz) | 95–120mg | USDA FoodData |
| Espresso | 30ml (1 shot) | 63mg | USDA FoodData |
| Yerba mate (brewed) | 240ml | 70–80mg | Healthline / published research |
| Red Bull (Original) | 250ml | 80mg | Red Bull product label |
| Monster Energy | 500ml | 160mg | Monster product label |
| Sol Maté | 330ml | 40mg | Brewed and measured per batch |
A few things to notice. Yerba mate has comparable caffeine to Red Bull, gram for ounce. But yerba mate isn't sweetened, isn't carbonated, and contains zero synthetic anything. Coffee tends to have more caffeine per ml than people realise — a large takeaway cup (16oz, 470ml) can deliver 200–300mg in one go, which is half the daily upper limit the EFSA considers safe for healthy adults.
What's actually in each drink
This is where the comparison gets interesting. Caffeine is just one molecule. What surrounds it changes everything.
Coffee
A cup of coffee is roughly:
- Caffeine (95–120mg per 240ml)
- Chlorogenic acids (antioxidant polyphenols, anti-inflammatory)
- Diterpenes — cafestol and kahweol (which raise LDL cholesterol slightly if unfiltered)
- Trigonelline, melanoidins, and a few hundred volatile aromatic compounds
- Water
If you take it black, that's it. Add milk and sugar and you've added 100+ calories.
Red Bull (Original, 250ml)
Straight from the label:
- 80mg caffeine (synthetic)
- 27g sugar
- 1000mg taurine
- 18mg niacin (B3), 5mg pantothenic acid (B5), 2mg vitamin B6, 5μg vitamin B12
- Sucrose, glucose, citric acid, carbon dioxide, natural and artificial flavours, colours (caramel, riboflavin)
Sugar-free swaps sucrose/glucose for aspartame, acesulfame K, and sucralose. The B-vitamin dose looks meaningful but in practice doesn't change much — most people aren't B-vitamin deficient, and the doses are well above any functional threshold.
Yerba mate (brewed)
From the leaves of Ilex paraguariensis, a South American holly:
- Caffeine (70–80mg per 240ml)
- Theobromine (the same alkaloid in dark chocolate — vasodilator, milder stimulant)
- Theophylline (trace — bronchodilator)
- Chlorogenic acids and other polyphenols (high antioxidant load)
- Saponins (compounds linked to cholesterol modulation)
- Vitamins (small amounts of B-complex, vitamin C, and minerals like potassium, magnesium, manganese)
No sugar. No sweeteners. No additives unless something else has been added.
Sol Maté (330ml can)
We brew Sol Maté in Greenock, Scotland. Here's everything in a can:
- Brewed organic yerba mate (40mg natural caffeine)
- Organic hibiscus, FairWild elderberry, FairWild liquorice root, FairWild dandelion leaf, organic burdock root (botanicals — for tartness, colour, depth, and a clean bitter backbone)
- Dual-extracted Lion's Mane and Cordyceps — 400mg each of fruiting body extract, sourced from Mogo Farms, Scotland
- Acerola cherry powder (natural source of vitamin C)
- Carbonated water, citric acid
20 calories. 4.4g sugar. 12mg caffeine per 100ml. pH 3.2. Read the can and you can name every ingredient.
Why the same caffeine feels different
If yerba mate and Red Bull have similar caffeine, why does one give you jitters and the other doesn't?
The answer is co-factors and delivery. Caffeine in coffee or Red Bull is essentially solo — pure caffeine, hitting your bloodstream fast. Yerba mate's caffeine is delivered alongside theobromine, polyphenols, and saponins, all of which interact with how your body processes it.
- Theobromine is a vasodilator and milder stimulant that overlaps with caffeine's effects but lasts longer in the body and doesn't spike heart rate the same way.
- Polyphenols (chlorogenic acids) slow the absorption of caffeine through the gut wall — meaning the same dose enters your blood gradually rather than all at once.
- Saponins add a mild bitter character and have been linked in some studies to a slower glycaemic response.
The result: a flatter, longer caffeine curve. People describe yerba mate as "alert without anxious" — that's the chemistry.
Red Bull's crash isn't really about the caffeine. It's about the sugar. 27g of sucrose/glucose hits your bloodstream fast, spikes insulin, and the rebound low arrives 60–90 minutes later — right as the caffeine starts wearing off. Double-whammy.
Coffee's crash is real but milder. It's mostly the caffeine itself wearing off (half-life ~5 hours) plus mild dehydration from the diuretic effect.
The taste profile
This matters more than people admit. You'll drink whichever one you actually enjoy.
- Coffee: bitter, smoky, deep. Acidic. Hot. Customisable with milk/sweetener.
- Red Bull: sweet, slightly metallic, citrusy, carbonated. Cold. Polarising — you either like it or you don't.
- Yerba mate: vegetal, grassy, slightly smoky, mildly bitter. Earthy. Traditional preparation is hot from a gourd, but canned and chilled versions are increasingly common.
- Sol Maté: yerba mate's earthiness softened by hibiscus tartness and a hint of elderberry. Carbonated, dry, not sweet.
When each one wins
This isn't a "yerba mate is the answer" piece. They're different tools.
- Coffee wins for: ritual, depth of flavour, maximum caffeine per ml, low calories black, and ubiquity (you can get coffee anywhere).
- Red Bull wins for: pre-workout convenience, predictable hit, late-night cramming sessions where you want sweetness, and brand recognition. (Not for: anyone who reads ingredient lists.)
- Yerba mate wins for: all-day drinkability without anxiety, sustained focus, antioxidant load, low-to-moderate caffeine without crashing, and ingredient transparency.
Frequently asked questions
Does yerba mate have more caffeine than coffee?
No. A typical brewed coffee (95–120mg per 240ml) has more caffeine than a typical brewed yerba mate (70–80mg per 240ml). The myth that mate is "stronger" comes from how it's traditionally consumed — refilled repeatedly over an hour or two — which accumulates more caffeine over time, not per sip.
Is yerba mate healthier than Red Bull?
On ingredient density and absence of added sugar, yes — clearly. Yerba mate is just leaves and water; Red Bull is synthetic caffeine plus 27g of sugar plus taurine plus colours. But "healthier" depends on what you're optimising for — a single Red Bull isn't going to harm a healthy adult, and a yerba mate habit can still go wrong if you drink ten litres a day.
Why does yerba mate not give me a crash?
Because the caffeine is absorbed more slowly (due to polyphenols) and co-delivered with theobromine, which has a longer half-life and gentler stimulant profile. There's no sugar spike to crash from either. The energy curve is flatter on both the way up and the way down.
Can yerba mate replace coffee?
For many people, yes — especially if you find coffee makes you anxious or gives you stomach issues. It won't give you the same flavour, but it delivers similar focus benefits with a softer landing. Most people who switch report better sleep too, because mate doesn't sit in the system as aggressively.
Is the caffeine in Red Bull synthetic?
Yes. The caffeine in Red Bull is synthesised industrially (typically from urea and chloroacetic acid). Chemically it's identical to the caffeine in coffee or mate — but it arrives without any of the surrounding plant compounds that modulate its effect.
How much yerba mate is safe per day?
The EFSA recommends a max of 400mg caffeine per day for healthy adults. At 70–80mg per cup, that's 4–5 cups of brewed mate, or roughly 10 cans of Sol Maté at 40mg each.
Where Sol Maté sits in this
Sol Maté is what happens when you take yerba mate and treat it like a proper craft drink. We don't add synthetic caffeine — 40mg per 330ml is on the lower end on purpose, and it's all from the brewed mate. 20 calories, 4.4g of sugar — low, declared on the can, no proprietary sweetener blends. We do add dual-extracted Lion's Mane and Cordyceps from Mogo Farms in Scotland, plus FairWild-certified botanicals (hibiscus, elderberry, liquorice, dandelion, burdock) because they make the drink taste like something you'd choose, not something you tolerate.
Read the can. Name every ingredient. That's the whole point.
Sol Maté is brewed in small batches in Greenock, Scotland. Order a 6-pack — link in our bio.
Sources
- USDA FoodData Central — caffeine values for coffee and espresso
- Healthline — Yerba Mate: Benefits, Side Effects, and More
- EFSA Scientific Opinion on the Safety of Caffeine (2015)
- Red Bull Original nutrition label (250ml can)
- Heck, A. et al., Yerba Mate Tea: A Comprehensive Review, Journal of Food Science (2007)