Protein coffee is having its moment. I had questions. I got answers. Some of them surprised me.
Let me paint the scene.
It’s a Tuesday morning. The café I’m in has a new item on the menu, positioned between the oat milk flat white and the hojicha latte. It’s called a Vanilla Protein Cold Brew. The description reads: cold brew, vanilla protein foam, 25g protein, 150 calories.
The person next to me orders it without hesitation. The barista makes it with the practiced efficiency of someone who’s made forty of these today already. It arrives looking genuinely beautiful — cold brew base, a thick foam the colour of cream, a light dusting of something across the top.
I stare at it for a moment. Then I order one.
This is the proffee review nobody asked for. You’re getting it anyway.
What proffee actually is
Proffee — protein coffee, for the uninitiated — is exactly what it sounds like: coffee combined with protein in some form. The earliest versions were simple and slightly brutal: a scoop of whey protein powder stirred into an iced coffee until it was mostly dissolved and somewhat lumpy if you weren’t thorough about it.
The 2026 café version is considerably more sophisticated. Specialty drinks are now competing more with premium desserts than daily morning routines, and proffee sits right at that intersection. The protein arrives as a cold foam — whipped, stable, textured — that sits on top of the coffee rather than mixing into it. Or as a protein-infused milk base. Or, at the more experimental end, as a protein shot added to an espresso drink the way a flavour shot would be.
Popular brands like Starbucks and Jimmy’s Coffee have adopted protein into their drinks, and it’s showing up on independent café menus at a rate that tells you this isn’t a passing moment. Mushroom coffee has seen menu mentions grow 4.2x year-over-year — and protein coffee is tracking similar momentum, especially with the wellness crowd who want their morning cup to do more than wake them up.
The case for it
I’ll be fair about this before I get to my reservations, because the case for proffee is genuinely reasonable.
Most people don’t eat enough protein at breakfast. This is well-documented and not especially controversial. The morning is the meal that most often gets compressed — skipped entirely, or reduced to whatever requires the least preparation. Coffee is one of the only things millions of people consistently consume in the morning without fail.
If you can add 20-30 grams of protein to the thing someone was already going to drink, with minimal change to the ritual and the experience — that’s not nothing. That’s a meaningful nutritional intervention packaged as a café drink.
The wellness angle is real too. Functional coffee enriched with protein, adaptogens, or natural sweeteners is aligning with the global wellness trend, and customers increasingly expect drinks that combine enjoyment with perceived functional benefits. The market has moved. People want their coffee to work harder. Proffee is a direct response to that.
What it actually tasted like
The Vanilla Protein Cold Brew I ordered was — and I want to be precise here — good. Not extraordinary. Not a revelation. But genuinely, pleasantly good.
The cold brew base was clean and smooth, well-extracted, properly chilled. The protein foam had a mild vanilla sweetness that complemented rather than dominated. The texture was the thing that surprised me most: the foam was stable enough that you got a layer of it in every sip rather than it dissolving into the coffee immediately, which meant the flavour was consistent all the way through the cup.
What it wasn’t: coffee. Not in the way that a pour-over is coffee, or a filter is coffee, or even a well-pulled espresso is coffee. The protein addition pushes it firmly into the territory of a coffee-adjacent wellness drink — which is fine, and is probably exactly what most people who order it are looking for.
The question is whether that’s what you want when you sit down with a cup.
My reservations — honest ones
Here they are, plainly.
Protein has a flavour. Even the best protein powders, even the clean-label whey, even the plant-based alternatives — they all bring something to the cup that isn’t coffee. A slight thickness. A faint aftertaste that lingers after the coffee notes have faded. Nothing offensive, but something present.
If you’re someone who cares deeply about what coffee tastes like at its best — the brightness of a washed Ethiopian, the depth of a natural process, the specific terroir of a well-sourced single-origin — the protein is going to compete with that. It’s going to round the edges of the flavour in ways you might not want.
The proffee is not designed for those people. It’s designed for people who want a functional, enjoyable, filling morning drink that happens to be built around coffee. Those are different things. Both are legitimate. But they’re different.
Who it’s actually for
If your morning cup is primarily about the ritual and the taste — if you’re the person who notices when the barista changed the grind and wants to talk about it — proffee is probably not your drink.
If your morning cup is about getting your day started well, feeling good, staying full until lunch, and enjoying something that tastes better than a protein shake from a shaker bottle — proffee might be exactly your drink. And there’s no shame in that. That’s a sensible set of priorities.
The café world has always been broad enough to hold both. The pour-over and the frappuccino coexist. The single-origin tasting menu and the caramel macchiato coexist. The proffee and the filter coffee can coexist.
The only mistake is treating one as the standard by which all others should be judged.
Would I order it again?
Honestly — yes. Not every day. Not instead of my filter coffee when I want to actually taste what’s in the cup. But on a morning when I’ve skipped breakfast and I want something that functions as both coffee and a proper start to the day without stopping for food?
Yes. The Vanilla Protein Cold Brew earns that morning.
Rating: 7/10 as a functional morning drink. 5/10 as a coffee. And that’s not a criticism — it’s just a clarification of what it’s actually trying to be.
Have you tried proffee — café-made or DIY at home? Did the protein addition change the experience for you, or did you not notice it at all? Tell me in the comments. And if you’ve found a combination that actually works really well, I want to know what it is.
Read next: Why I’m Trying Mushroom Coffee — and What Actually Happened
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