Can you put creatine in coffee or hot food?
Short answer: Yes. Heat is not what breaks creatine down, acid and time are. Creatine turns into creatinine over hours and days in solution, not over the ten minutes you spend drinking a coffee, and heat actually helps it dissolve. The losses worth worrying about come from long, hot, acidic cooking, not from your mug.
- Time and acid do the damage, not temperature alone. Creatine in solution lost about 4% over three days at pH 5.5 and 25°C, but about 21% at pH 3.5.
- Coffee sits around pH 5, closer to the forgiving end. Orange juice, near pH 3.5, is the drink to avoid, and that has nothing to do with heat.
- Hot helps. Creatine dissolves far better in hot liquid than cold, so a hot drink solves the gritty-sludge-at-the-bottom problem rather than causing one.
- Sustained cooking is a real cost. Beef simmered at 100°C for three hours dropped from ~3.9–4.5 mg creatine per gram to ~1.3–3.2 mg, with creatinine rising in step.
- Creatinine is inert, not toxic. Your kidneys clear it daily anyway. The only price of degradation is a weaker dose, not a health risk.
Does hot coffee destroy creatine?
No, not in any amount you would notice. The fear is real chemistry pointed at the wrong target. Creatine in water slowly performs an intramolecular cyclisation, folding in on itself and losing a water molecule to become creatinine, which does nothing for performance. That reaction is genuinely one-way and genuinely unavoidable. It is also genuinely slow.
How slow? In the reference stability data, creatine held in solution at pH 5.5 and 25°C lost about 4% after three days. Three days. A flat white is in front of you for maybe ten minutes. Heat speeds the reaction up, but it is speeding up a process measured in days, and the liquid starts cooling the moment it is poured.
Meanwhile, creatine monohydrate is famously solubility-limited in cold water, which is why people end up chewing the last mouthful. Hot liquid dissolves it properly. On balance, a hot drink is one of the easier places to put a scoop, not one of the harder ones.
What actually converts creatine to creatinine: acid, heat, time
Three dials control the reaction, and most people only ever worry about one of them. Call it the acid-heat-time rule: how much creatine you lose depends on how acidic the liquid is, how hot it is, and how long it sits. Of the three, acidity is the strongest dial and the one nobody checks.
The published stability work makes this obvious. Hold everything else constant at three days and 25°C, and simply moving the pH from 5.5 to 3.5 takes the loss from about 4% to about 21%, roughly a fivefold difference from acidity alone. That is why mixing creatine into citrus juice is a worse idea than mixing it into hot coffee, which is the opposite of what most gym advice tells you.
The measured numbers, side by side
Here is every condition we could find real measurements for, arranged from "completely fine" to "you have lost a meaningful share". Note what is missing: nobody has published a trial that stirs creatine into an 85°C coffee and measures it fifteen minutes later. What exists is the kinetics on either side of that gap, and they bracket it tightly.
| Condition | pH | Temperature | Time | Creatine lost |
|---|---|---|---|---|
| Dry powder in the tub | n/a | Room temp, and 40°C | Over 3 years | No degradation detected |
| Dry powder, hot storage | n/a | 60°C | 44 months | First trace of creatinine (106 ppm) |
| Solution, near-neutral | 5.5 | 25°C | 3 days | ~4% |
| Solution, mildly acidic | 4.5 | 25°C | 3 days | ~12% |
| Solution, juice-acidic | 3.5 | 25°C | 3 days | ~21% |
| Beef simmered to juice | ~5.5 (meat) | 100°C | 3 hours | Large: ~3.9–4.5 mg/g fell to ~1.3–3.2 mg/g, creatinine rose in step |
Read the table as a shape rather than a lookup. Dry powder is close to indestructible. Solution is a slow leak whose rate is set mostly by pH. Only sustained, hours-long heat produces a loss big enough to change your dose. A cup of coffee lives nowhere near that last row.
Does caffeine cancel out creatine?
This is the other half of the coffee question, and it is a fair one. In 1996, a study loading nine men with a very high creatine dose (around 0.5 g per kg of body weight daily) found that adding caffeine blunted the improvement in knee-extension torque, even though muscle phosphocreatine rose in both groups.
That finding has never been replicated. Later work, including a systematic review of concurrent use, found no impairment of phosphocreatine levels, strength, sprint output or body composition when the two are taken together at normal doses. The honest summary: one unreplicated result from a loading protocol almost nobody uses, against a broader literature that shows nothing. If you like coffee, drink coffee.
Can you cook or bake with creatine?
You can, with one rule: add it late. Stirring creatine into porridge that is already cooked keeps the exposure to a minute or two at falling temperature. Boiling it in from the start, or baking it for forty minutes, moves you toward the bottom row of the table.
The reassuring part is what happens to creatine that is built into a food. When creatine was given to men either as a plain aqueous solution or baked into a protein-rich or beta-glucan-rich food bar, absorption was slowed considerably, up to eightfold with the beta-glucan bar, but the total amount absorbed was unchanged. Slower is not less. That rate-versus-amount distinction is the same one at the heart of can you take creatine and fibre together?, and it keeps coming up because it keeps being misread as a loss.
Is creatinine bad for you?
No. Creatinine is the ordinary end product of creatine metabolism in your own muscle; your body makes and clears roughly a gram or two of it every day, which is precisely why blood creatinine is used as a routine marker of kidney filtration. Swallowing a small extra amount from a degraded scoop is not a health event. It is simply inactive: creatinine does no work in muscle.
So the entire cost of getting this wrong is a slightly weaker dose, not a risk. That is worth saying plainly, because the "heat destroys creatine" advice is usually delivered in a tone that implies danger. The stakes here are a few percent of a few grams.
The practical rules, in one list
- Hot drink, fine. Stir it in and drink it. Heat helps the powder actually dissolve.
- Acidic drink, mix fresh. Citrus juice or anything near pH 3.5 is the real accelerant. Do not let it sit.
- Do not pre-mix for the week. An hour or a night is fine; days in a bottle is where the 4% and upward starts to apply.
- Add to food at the end, not the beginning. Cooked porridge, yes. Forty minutes of simmering, no.
- Store the tub dry and sealed. The powder is the stable form, and it stays that way for years.
- None of this beats consistency. Creatine works by keeping muscle stores saturated over time, so a slightly degraded dose you actually take daily is worth more than a perfect dose you skip. That is the argument in when should you take creatine, morning or post-workout?
The reason this question gets asked so often is that people are trying to attach creatine to something they already do every morning, usually a coffee. That instinct is correct, and it is the same logic behind building the dose into a breakfast rather than selling another tub to remember: see can you take creatine every day, and do you need to load it? and the wider case in the protein + fibre + creatine stack, explained.
No mug, no measuring, no wondering if you cooked it. Just breakfast.
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Join the waitlistFrequently asked questions
Can you put creatine in hot coffee?
Yes. Creatine converts to creatinine slowly, on a timescale of days in solution rather than minutes, so the ten or fifteen minutes a coffee spends in front of you costs you very little. Heat actually helps it dissolve, which is a practical win over gritty cold water. Stir it in, drink it, do not leave the mug on your desk until lunchtime.
Does boiling water destroy creatine?
Brief contact with boiling water does not. Sustained boiling does. When beef was simmered at 100 degrees Celsius for three hours to make juice, creatine fell from about 3.9 to 4.5 mg per gram in the raw meat to about 1.3 to 3.2 mg per gram, with creatinine rising in step. Three hours of boiling is a real loss; pouring hot water over a scoop is not.
Can you mix creatine into porridge or oats?
Yes, and stirring it into already-cooked porridge is better than boiling it in from the start, because it keeps the heat exposure to a minute or two. Creatine eaten as part of a food is absorbed more slowly than creatine in water, but the total amount absorbed is the same, so the slower delivery costs you nothing.
Does caffeine cancel out creatine?
Probably not. One 1996 study found caffeine blunted the performance benefit of a very high creatine loading dose, but it has not been replicated, and later work found no effect on muscle phosphocreatine, strength or body composition when the two are taken together at normal doses. Coffee is not a reason to avoid creatine.
Can you mix creatine the night before and drink it in the morning?
You can, and the loss is small, but it is larger than anything heat does to you. Creatine in solution at pH 5.5 lost about 4 percent over three days at room temperature, so overnight is a fraction of a percent. If the drink is acidic, such as juice or a citrus mix, mix it fresh instead.
Sources
- Jäger R, Purpura M, Shao A, Inoue T, Kreider RB. Analysis of the efficacy, safety, and regulatory status of novel forms of creatine. Amino Acids 2011;40(5):1369–1383. PMC3080578
- Elbir Z et al. Determination of creatine, creatinine, free amino acid and heterocyclic aromatic amine contents of plain beef and chicken juices. Journal of Food Science and Technology 2020. PMC8292545
- Deldicque L, Décombaz J, Zbinden Foncea H et al. Kinetics of creatine ingested as a food ingredient. European Journal of Applied Physiology 2008;102:133–143. PubMed 17851680
- Vandenberghe K, Gillis N, Van Leemputte M, Van Hecke P, Vanstapel F, Hespel P. Caffeine counteracts the ergogenic action of muscle creatine loading. Journal of Applied Physiology 1996;80(2):452–457.
- Trexler ET, Smith-Ryan AE. Creatine and caffeine: considerations for concurrent supplementation. International Journal of Sport Nutrition and Exercise Metabolism 2015;25(6):607–623.
This article is general education, not medical advice, and reflects the state of the research at the time of writing. It is not a claim that any product prevents, treats or cures disease. If you have a kidney condition, are pregnant or breastfeeding, have a health condition or take medication, speak with a qualified healthcare professional before starting any supplement.