Can you put creatine in coffee?

Yes. The two reasons people say you shouldn't — the heat destroys it, and the caffeine cancels it out — are both far weaker than they sound.

Does the heat destroy it?

Creatine really does break down into creatinine in water, and both heat and acidity speed that up. But every study that has actually measured this puts meaningful losses on a timescale of days to weeks, not minutes. The most-cited stability data shows 4% lost after three days at coffee-like acidity and room temperature. The one study that genuinely did destroy creatine with heat managed it by retorting pet food at 121°C under pressure — not by pouring a cup of coffee.

Worth being straight with you: nobody has directly measured this in a real cup of coffee at drinking temperature. A 2025 paper did put creatine into coffee, but it identified which breakdown products form, not how much creatine is lost. So the honest answer is that the mechanism is real, the measured timescales are far too slow to matter, and the specific experiment has never been run. Anyone quoting you a precise percentage for a hot latte is extrapolating.

Does the caffeine cancel it out?

This traces back to a 1996 study in which caffeine wiped out creatine's strength benefit entirely. But that study gave roughly 400 mg of caffeine every day for six days, throughout a creatine loading phase. That is not what having a coffee looks like.

When researchers gave a single dose of caffeine on top of a completed creatine load, creatine still worked — and the caffeine added power on top. The dose wasn't small, either; what changed was that it was taken once, not daily throughout loading. And the 2016 trial that specifically tested instant coffee with creatine found no blunting — though read that one gently, since creatine alone didn't beat placebo in it either, so there was little effect available to blunt.

The mechanism everyone repeats — that caffeine blocks creatine absorption — is contradicted by the very study it comes from. In that 1996 experiment, muscle creatine levels rose just as much with caffeine as without. Whatever happened there, it was not an absorption problem.

Practical takeaway

Stir it in and drink it. Don't leave it sitting in a thermos all day. And if you are chasing a hard performance effect, note that the one protocol ever shown to interfere was chronic high-dose caffeine taken throughout a loading phase — a coffee is not that.