CLEAN Cause vs Mateina: Which Canned Yerba Mate Wins?

CLEAN Cause is the sparkling, low-sugar, higher-caffeine can with a recovery mission; Mateina is the still, zero-sugar, cold-brewed minimalist. Here's how the two leading clean-mate cans really compare.

By The Yerba Mate Reviews Desk · 7 min · Updated 2026-06-14

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The honest short answer: pick CLEAN Cause if you want sparkling, a bigger caffeine hit, and a mission; pick Mateina if you want still, zero sugar, and the cleanest possible formula. Both are organic, ready-to-drink mate cans aimed at people who want an energy-drink swap without the sugar — but they pull in different directions.

CLEAN Cause is the sparkling lane: carbonated, low-sugar, organic, dosed at the higher 160mg of caffeine, and built around a mission — the company donates 50% of its profits to addiction recovery. Mateina is the still lane: non-carbonated, cold-brewed, zero-sugar (~20 calories), Organic/Non-GMO, and dosed lighter at 120mg, with a minimalist clean-energy reputation.

Neither is "better" in the abstract — it depends on whether you want bubbles or no bubbles, a bit of sugar or none, more caffeine or less, and whether the recovery mission moves you. This guide compares them honestly across carbonation, sugar, caffeine, and mission. Caffeine is still caffeine in both, so moderate. Not medical advice.

The short version

  • Carbonation is the headline split: CLEAN Cause is sparkling; Mateina is still (non-carbonated).
  • Caffeine: CLEAN Cause is higher at ~160mg per can; Mateina is lighter at ~120mg.
  • Sugar: Mateina is zero-sugar (~20 calories); CLEAN Cause is low-sugar (not zero).
  • Brew style: Mateina is cold-brewed for a smooth profile; CLEAN Cause is a sparkling brewed mate.
  • Mission: CLEAN Cause donates 50% of its profits to addiction recovery — a real tiebreaker for some buyers; Mateina's pitch is minimalist clean energy.
  • Both are organic ready-to-drink mate and a cleaner swap for sugary energy drinks.
  • Bottom line: CLEAN Cause for sparkling + bigger lift + mission; Mateina for still + zero sugar + the cleanest formula.
FactorCLEAN CauseMateina
CarbonationSparkling (carbonated)Still (non-carbonated)
Caffeine (per can)~160mg~120mg
SugarLow sugar (not zero)Zero sugar (~20 calories)
Brew styleSparkling brewed mateCold-brewed
CertificationOrganicOrganic / Non-GMO
MissionDonates 50% of profits to addiction recoveryMinimalist clean-energy positioning
Best forBubbles, a bigger lift, and a causeStill, zero sugar, the cleanest formula

CLEAN Cause vs Mateina — fizz vs still, a little sugar vs none, more caffeine vs less.

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Question 1 of 6

First things first — what are you after with yerba mate?

Sparkling vs still: the biggest difference

This is the split that decides it for most people: CLEAN Cause is sparkling, Mateina is still. CLEAN Cause is carbonated — it drinks more like a sparkling water with a kick, light and fizzy, which is exactly the appeal for people who find sweet cans cloying. Mateina is non-carbonated and cold-brewed, so it reads as a smooth iced mate rather than a soda.

Quick rule: if you reach for sparkling water and seltzers, CLEAN Cause will feel natural. If you'd rather drink a smooth, flat iced tea, Mateina is your lane. Carbonation is a taste preference, not a quality difference.

Sugar and caffeine: where they diverge

Mateina is the lower-sugar, lower-caffeine pick; CLEAN Cause is low-sugar with a bigger hit. On sugar, Mateina is zero-sugar (~20 calories), while CLEAN Cause is low-sugar — light, but not zero. If cutting sugar entirely is the goal, Mateina is the cleaner number.

On caffeine, it flips: CLEAN Cause is the stronger can at ~160mg, while Mateina is lighter at ~120mg. So CLEAN Cause gives you more of a lift per can, and Mateina gives you a gentler one with no sugar at all. Neither is dramatic, but if you want maximum energy, CLEAN Cause edges it; if you want minimum sugar and a softer dose, Mateina does.

Pair the two specs: Mateina = zero sugar + lighter caffeine (the minimalist). CLEAN Cause = a little sugar + more caffeine (the bigger, fizzier hit). Pick the combination that matches what you actually want from the can.

The mission angle: CLEAN Cause's tiebreaker

CLEAN Cause's standout is its mission: the company donates 50% of its profits to addiction recovery. That's a genuine, repeated reason buyers choose it — you get a sparkling organic mate and fund recovery scholarships at the same time. For people who care where their dollars go, it's a legitimate deciding factor.

Mateina's pitch is different: minimalist clean energy. It leans on being zero-sugar, cold-brewed, and Organic/Non-GMO, and has built a following in the focus-and-productivity crowd as a no-frills caffeine source. So the choice here isn't just taste — it's whether a recovery mission or a stripped-down clean formula speaks to you more.

The honest limit: caffeine is still caffeine

Both are real caffeine, and "clean" doesn't mean "unlimited." CLEAN Cause at ~160mg and Mateina at ~120mg are both meaningful doses — closer to a coffee or an energy drink than a casual tea. Drink several, stack them with coffee, or have one late in the day, and either can bring jitters, a racing heart, or disrupted sleep.

Be especially mindful if you're caffeine-sensitive, pregnant, or already caffeinated from coffee — the totals add up. CLEAN Cause's higher number means it adds up faster. Watch the per-can figure, space your intake, and treat these as better-formulated caffeine sources, not health drinks you can have endlessly. This isn't medical advice.

So which should you buy?

It comes down to four small forks. Choose CLEAN Cause if you want sparkling bubbles, the bigger ~160mg caffeine hit, and a brand whose 50%-to-recovery mission means something to you — and you don't mind a little sugar. Choose Mateina if you want a still, cold-brewed mate with zero sugar, a lighter ~120mg dose, and the cleanest, most minimalist formula.

Both are organic, ready-to-drink, and a real upgrade over a sugary energy drink — there's no wrong answer, just a preference. If you want the full canned-mate field including Guayakí's sweeter berry cans, see our best canned yerba mate roundup. Either way, check the can and moderate.

Questions, answered

What's the difference between CLEAN Cause and Mateina?

CLEAN Cause is sparkling, low-sugar, organic, dosed at ~160mg of caffeine, and donates 50% of its profits to addiction recovery. Mateina is still (non-carbonated), zero-sugar (~20 calories), cold-brewed, Organic/Non-GMO, and dosed lighter at ~120mg. In short: CLEAN Cause is the fizzy, bigger-hit, mission-driven can; Mateina is the still, zero-sugar, minimalist one.

Which has more caffeine, CLEAN Cause or Mateina?

CLEAN Cause has more — about 160mg per can versus roughly 120mg for Mateina. Both are real doses, closer to a coffee or energy drink than a casual tea, so moderate your intake either way, especially late in the day or if you're caffeine-sensitive. Not medical advice.

Which has less sugar, CLEAN Cause or Mateina?

Mateina has less — it's zero-sugar (~20 calories). CLEAN Cause is low-sugar, meaning light but not zero. If cutting sugar entirely is the goal, Mateina is the cleaner choice; if a little sugar is fine and you want bubbles, CLEAN Cause works.

Is CLEAN Cause or Mateina carbonated?

CLEAN Cause is sparkling (carbonated) — it drinks like a sparkling water with a kick. Mateina is still (non-carbonated) and cold-brewed, so it reads as a smooth iced mate. Carbonation is the single biggest difference between them and usually comes down to personal taste.

Does CLEAN Cause really donate to charity?

Yes — CLEAN Cause's stated mission is that the company donates 50% of its profits to addiction recovery (including recovery scholarships). For buyers who care where their dollars go, it's a real reason to choose it over a comparable can. Mateina's positioning is different — minimalist clean energy rather than a donation mission.

Which is a better energy-drink swap, CLEAN Cause or Mateina?

Both are organic, low- or zero-sugar mate cans that work well as a cleaner swap for a sugary energy drink. Mateina is the pick if you want zero sugar and a lighter, still, cold-brewed profile; CLEAN Cause is the pick if you want a bigger ~160mg sparkling hit and like that 50% of profits fund recovery. Either way, caffeine is still caffeine, so moderate. Not medical advice.