Can you put creatine in coffee? Heat, caffeine, and pre-workout

Yes, you can put creatine in coffee, including hot coffee, as long as you drink it within a reasonable time. Heat speeds up the slow conversion of creatine into creatinine, but over the few minutes it takes to drink a cup, that loss is unlikely to be meaningful. The caffeine question is less settled: a few small studies suggest caffeine may blunt some of creatine's benefit, while others found no problem.

By Creatine Today · Editorial policy

Can you put creatine in hot coffee?

Yes. Creatine monohydrate is a stable powder, and it dissolves more easily in warm liquid than in cold water. One liter of water dissolves about 14 g of creatine at room temperature (20 °C) but about 34 g at 50 °C. That is why some of the first creatine studies gave participants their dose in hot tea. A 2021 review of common creatine questions notes that better solubility does not change how much creatine your muscles take up, so a hot drink is a convenience, not an upgrade.

Coffee does not need to be hot for creatine to work. Iced coffee, cold brew, or coffee with milk are all fine. In cold drinks the powder may not dissolve fully. Stir well, and if some settles at the bottom, swirl it and drink the rest so you get the whole dose.

Does heat destroy creatine?

Heat does not destroy creatine in an instant, but it does speed up a slow chemical change. In liquid, creatine gradually converts into creatinine, a waste product with no supplement benefit. Lab data show that this conversion is faster when the liquid is warmer and more acidic. Coffee is mildly acidic and served hot, so it is not the ideal place to store creatine for hours.

The practical question is timing. Lab measurements show creatine breaking down over days in acidic liquid at room temperature. No study has measured creatine in a cup of coffee specifically, so there is no exact figure for coffee. Based on how the conversion works, stirring creatine into coffee and drinking it within a short time should leave nearly all of it intact. Leaving it in a thermos all day is a different situation, and you would expect more of it to convert.

The dry powder is different. Creatine monohydrate powder stays stable for years, even in warm storage. You can read more in our guide on whether creatine expires.

Does caffeine cancel out creatine?

The honest answer is that the evidence is mixed and small. The concern comes mostly from a 1996 study of 9 men. They took a high loading dose of creatine (0.5 g per kg of body weight per day) for 6 days, with or without 5 mg per kg of caffeine per day. Creatine alone improved muscle torque during repeated intense contractions. When caffeine was added, that performance gain disappeared, even though muscle phosphocreatine rose in both conditions.

Later work did not settle the question. A 2022 systematic review found 10 relevant studies. When creatine and caffeine were taken together over several days, two studies found that caffeine interfered with creatine's benefit, three found no interaction, and one found a combined benefit. Taking creatine for several days and then a single dose of caffeine before exercise did not seem to cause a problem. The authors suggested possible mechanisms, such as opposite effects on muscle relaxation time and stomach upset when the two are taken together, but these are not proven.

What this means in practice:

• The studies that found a problem mostly involved creatine loading combined with daily caffeine. The evidence for a normal 3–5 g daily dose with a usual coffee habit is limited.
• Many people take creatine and drink coffee, and the main creatine research was not done in caffeine-free populations.
• If you want to be cautious, you can take creatine at a different time of day from your coffee. Timing matters less than taking it every day, so this costs you little.

Is creatine the same as caffeine or pre-workout?

No. Creatine is not a stimulant and contains no caffeine. It does not give you a jolt of energy when you take it. It works by slowly raising the amount of creatine stored in your muscles, which helps during short, intense efforts such as lifting or sprinting. Without a loading phase, muscle stores take about 3–4 weeks to rise fully. See our guide on how long creatine takes to work.

Pre-workout products are blends taken shortly before training. Most contain caffeine, which is meant to act within the next hour or so. Many also contain other ingredients such as beta-alanine and citrulline. Creatine can be one of those ingredients, but a pre-workout is not the same thing as creatine.

Should you take creatine if your pre-workout already has creatine in it?

Check the label first. A 2019 analysis of the top 100 pre-workout products found that 49% listed creatine, at an average of about 2.1 g per serving where the amount was disclosed. That is below the usual 3–5 g daily amount. Nearly half of all listed ingredients sat inside proprietary blends without individual amounts, so you may not know how much creatine you are getting.

If your pre-workout lists a clear creatine amount, count it toward your daily total and top up with plain creatine monohydrate if needed. For example, if it contains 2 g, an extra 1–3 g brings you into the usual range. There is no need to take a full extra dose on top unless you want to. On days you skip the pre-workout, such as rest days, take your regular dose so your stores stay up.

How much caffeine is too much?

The U.S. Food and Drug Administration cites 400 mg of caffeine per day as an amount not generally associated with negative effects for most adults. A 12 oz cup of brewed coffee can contain about 113–247 mg. In the 2019 pre-workout analysis, products that listed caffeine averaged about 254 mg per serving, so coffee plus a pre-workout can add up quickly. People vary widely in how sensitive they are to caffeine.

If you are pregnant, trying to become pregnant, breastfeeding, have a heart condition, or take medication, talk with a clinician about your caffeine intake. The same applies to starting creatine if you have kidney disease.