Creatine in Coffee: Can You Mix Them? Heat and Caffeine
Roon Team
Creatine in Coffee: Can You Mix Them? Heat and Caffeine
Yes, you can put creatine in coffee. Creatine monohydrate actually dissolves better in hot liquid than cold, and the breakdown to creatinine in a mildly acidic drink takes days at room temperature, not the minutes it takes to finish a cup. The open question is whether caffeine during a creatine loading phase blunts the benefit. Two small studies found interference. A larger one did not.
Key Takeaways
- Creatine monohydrate powder is heat-stable for years. In solution, degradation depends on pH and time, and coffee's pH puts losses at a few percent over days, not minutes.
- A 5 g scoop dissolves fully in hot coffee but leaves grit in iced coffee or cold brew because of a solubility floor around 14 g/L at room temperature.
- The "caffeine cancels creatine" signal comes from two studies (n=9 and n=10) using 5 mg/kg/day caffeine during a loading phase. The largest trial (n=54) found no difference.
- Nobody has tested a normal 3 to 5 g maintenance dose stirred into one daily cup of coffee. The concern is theoretical at typical doses.
Does Hot Coffee Destroy Creatine?
No. Creatine monohydrate as a dry powder shows no detectable degradation at room temperature or even at 40 °C (104 °F) after more than three years. At 60 °C (140 °F), trace creatinine (106 ppm) appeared only after 44 months. That is the powder sitting in a hot warehouse, not dissolved in liquid.
In solution, creatine converts to creatinine through intramolecular cyclization. The rate depends on pH, not concentration, and lower pH plus higher temperature speed it up. But "speed it up" still means days, not minutes. An industry-affiliated review in Amino Acids (Jäger et al., 2011) measured the degradation of creatine in solution at 25 °C over three days at several pH levels:
| pH of solution | Creatine degraded after 3 days at 25 °C |
|---|---|
| 7.5 | Negligible |
| 6.5 | Negligible |
| 5.5 | ~4% |
| 4.5 | ~12% |
| 3.5 | ~21% |
Coffee sits right in the middle of that table. A 2018 study in Scientific Reports (Rao and Fuller) measured the pH of hot brew and cold brew samples at 4.85 to 5.13, putting coffee between the 4% and 12% rows over three full days at room temperature.
Your cup of coffee is not sitting at 25 °C for three days. You drink it in 15 to 30 minutes. No study has measured creatine loss in an actual cup of coffee, so there is no honest per-cup number to give. The inference from the pH and time data: the loss is trivially small.
One practical note from the same review: if you dissolve creatine and do not drink it right away, refrigerate it. Do not batch-mix a pitcher of creatine coffee for the week.
Does Creatine Dissolve in Coffee?
This is the real reason to use a hot drink. Creatine monohydrate has limited solubility in water, and temperature changes it sharply. From the same 2011 review:
| Water temperature | Creatine solubility |
|---|---|
| 4 °C (39 °F) | 6 g/L |
| 20 °C (68 °F) | 14 g/L |
| 50 °C (122 °F) | 34 g/L |
| 60 °C (140 °F) | 45 g/L |
A standard 5 g scoop in an 8 oz (237 mL) cup requires a concentration of about 21 g/L. That is above the 20 °C limit and well under the 50 °C limit. Hot coffee, brewed at 195 to 205 °F per the National Coffee Association's guidance and served at maybe 140 to 160 °F, dissolves the scoop easily.
Iced coffee or cold brew? At room temperature you are already past the solubility ceiling. You will get grit at the bottom. The workaround: dissolve the creatine in a small splash of hot water first, then pour it into your cold drink.
Does Caffeine Cancel Out Creatine?
This is the question that actually matters, and the answer is less clean than supplement blogs make it sound. Four key studies, summarized:
| Study | Design | n | Creatine dose | Caffeine dose | Finding |
|---|---|---|---|---|---|
| Vandenberghe et al., 1996 | 6-day supplementation | 9 | 0.5 g/kg/day (~35 to 40 g) | 5 mg/kg/day (~375 mg) | Both creatine arms raised muscle phosphocreatine. Dynamic torque rose 10 to 23% with creatine alone but did not change with creatine + caffeine. |
| Hespel et al., 2002 | Double-blind crossover | 10 | 4 x 5 g/day | 5 mg/kg/day (~375 mg) | Creatine shortened muscle relaxation time ~5%; caffeine lengthened it ~10%; combined, no significant change. |
| Trexler et al., 2016 | 5-day loading, 4 groups | 54 | 5 g x 4/day | 300 mg/day (anhydrous) or ~303 mg (coffee) | Strength improved in all groups with no treatment interaction between creatine alone, creatine + caffeine anhydrous, and creatine + coffee. |
| Elosegui et al., 2022 | Systematic review, 10 studies | (review) | Varied | Varied | Of acute-dosing studies, 3 found no interference and 1 reported a mixed result. Of chronic co-supplementation studies: 2 found interference, 3 found none, 1 reported a positive interaction. |
The interference signal comes from the two small studies using heavy caffeine (5 mg/kg/day, roughly 375 mg for a 75 kg person) during a loading phase with extreme creatine doses. The largest trial, Trexler et al. with 54 participants, found no difference between creatine alone and creatine with coffee. A 2015 review by the same group concluded that "a pharmacokinetic interaction is unlikely" and pointed to opposing effects on muscle relaxation time and GI distress as more plausible mechanisms.
One detail worth noting: four subjects in the Trexler caffeine-anhydrous arm reported mild gastrointestinal discomfort. None in the coffee arm did. If you are loading creatine and consuming caffeine, coffee may be gentler than a caffeine pill.
Nobody has tested a normal 3 to 5 g daily maintenance dose in one cup of coffee. The concern about caffeine "canceling" creatine is, at typical doses, theoretical. For a deeper look at how the two compounds compare for mental performance, that is a separate conversation.
Can You Mix Creatine with Coffee Every Day?
Practical protocol:
- Brew your coffee as usual. Any method works.
- Add 3 to 5 g of creatine monohydrate (the ISSN position stand lists this as the daily maintenance dose once stores are saturated).
- Stir well. Micronized creatine dissolves faster, but standard monohydrate will dissolve in hot coffee within 30 seconds of stirring.
- Drink it within the hour. Do not let it sit on your desk all morning.
- Iced coffee? Dissolve the scoop in 2 to 3 tablespoons of hot water, then add it to your cold drink.
Creatine is tasteless or nearly so. Most people report no change in the flavor of black coffee. Add milk or sugar as you normally would. For those who take creatine in black coffee during a fasting window, creatine does not break a fast (zero calories, zero sugar).
How Much Caffeine Is in the Cup You Are Mixing It Into?
The caffeine content of your coffee varies more than most people realize. If you are concerned about caffeine and creatine interaction, knowing the dose matters.
| Source | Serving | Caffeine (mg) |
|---|---|---|
| Brewed coffee (USDA average) | 8 fl oz | ~95 |
| Brewed coffee (analytical range) | 12 fl oz | varies widely |
| Caffeine pouch (Roon) | 1 pouch | 80 |
| FDA daily figure for most adults | (daily limit) | up to 400 |
The studies that found caffeine blunting creatine used about 375 mg/day. A single 8 oz cup is well under that. Two or three large mugs across the day could approach it. For a full breakdown, see how much caffeine is in a cup of coffee.
Creatine Before Bed, and Why the Coffee Is the Part That Matters
Creatine is not a stimulant. It is not known to affect sleep onset or sleep quality. The caffeine in your coffee is the variable. If you take creatine at night, just take it in water, juice, or any non-caffeinated liquid. For more on timing, see creatine before bed and how long caffeine stays in your system.
Who Should Check with a Clinician First
If you have kidney disease, are pregnant or breastfeeding, are under 18, or take prescription medication, talk to your doctor before adding creatine (or any supplement) to your routine. This article is not medical advice.
The Short Answer on Creatine and Coffee
Creatine monohydrate dissolves better in hot coffee than cold water. The degradation that worries people takes days at coffee's pH, not the minutes you spend drinking a cup. The caffeine interaction question remains open for high-dose loading protocols, but the largest controlled trial found no problem, and no one has tested the scenario most people actually live: one scoop of creatine in one morning cup of coffee. Stir it in, drink it promptly, skip the batch mixing.
Frequently Asked Questions
Can you put creatine in hot coffee?
Yes. Creatine monohydrate dissolves more readily in hot water (34 g/L at 50 °C vs. 14 g/L at 20 °C). Brewed coffee is hot enough to dissolve a 5 g scoop completely. The heat does not destroy creatine in the time it takes to drink a cup. Degradation in solution is driven by pH and time, measured in days, not minutes.
Does caffeine cancel out creatine?
The evidence is mixed, not settled. Two small studies (n=9 and n=10) using 5 mg/kg/day caffeine during a loading phase found interference with creatine's performance benefit. The largest trial (n=54) found none. A 2015 review called a pharmacokinetic interaction "unlikely." At typical daily coffee intake, the concern is theoretical.
Can you put creatine in iced coffee or cold brew?
You can, but expect grit. Creatine solubility at room temperature is only about 14 g/L, and a 5 g scoop in 237 mL needs about 21 g/L. The fix: dissolve the creatine in a small amount of hot water first, then pour it into your iced drink.
Does creatine change the taste of coffee?
Barely, if at all. Creatine monohydrate is nearly tasteless. Some people notice a very slight chalky quality in black coffee, but most report no perceptible flavor difference. It does not affect the aroma.
Can you mix creatine with pre-workout and coffee on the same day?
You can, but watch your total caffeine and creatine intake. Many pre-workouts already contain both. Double-scooping creatine is not harmful (you excrete the excess), but stacking caffeine sources can push you past the FDA's 400 mg daily figure. Count all sources. For more on stacking, see creatine vs. pre-workout.
Does creatine have caffeine in it?
No. Creatine monohydrate is a standalone compound with zero caffeine, zero calories, and no stimulant properties. Any caffeine in a creatine product was added separately and will be listed on the label.
If the Coffee Is Just the Carrier, Count the Caffeine Separately
The whole point of this article is that coffee works fine as a vehicle for creatine. But the cup itself is a sloppy way to meter caffeine. One 12 oz mug might deliver very different amounts than the next. If you are tracking intake because you care about the interaction studies, or because you want consistent energy without guessing, that variability is the problem.
Roon is a zero-nicotine oral pouch with 80 mg of caffeine per pouch, plus L-theanine, methylliberine (Dynamine), and theacrine (TeaCrine). The caffeine dose is fixed and labeled. Methylliberine slows caffeine's clearance: in a randomized, double-blind, crossover PK study (n=12), co-administration of 100 mg methylliberine with 150 mg caffeine cut caffeine's oral clearance from 41.9 to 17.1 L/hr and extended its half-life from 7.2 to 15 hours, with no increase in peak concentration (study). That study used 4x the methylliberine and roughly 1.9x the caffeine in Roon, so the magnitude will differ, but the mechanism is directionally the same: same peak, longer tail, felt for 6 to 8 hours.
The trade-off: a longer half-life means you should stop at least 8 hours before bed. Roon is not a creatine supplement and does not replace the scoop. It is a way to get a fixed, known caffeine dose without the variability of a pour-over. Tins start at $9.16 on a 12-tin subscription ($0.61 per pouch), or $15.00 per tin for a one-time 4-tin order, with a first-order 30-day money-back guarantee. Keep the creatine in whatever liquid you like.
Related from Roon
- Creatine vs. Caffeine for Cognition
- Creatine for the Brain: Is It a Nootropic?
- How Much Caffeine Is in a Cup of Coffee?
- How Long Does Caffeine Stay in Your System?
Written by Roon Team
