Does Decaf Coffee Have Caffeine? How Much, How It’s Made, and Whether It’s Safe
Short answer: Yes, decaf coffee has some caffeine, just much less. The FDA says an 8 oz cup of decaf typically contains 2 to 15 mg, compared with about 96 mg in the same cup of regular brewed coffee. Coffee-shop sizes are bigger: Starbucks lists a Grande Decaf Pike Place Roast at about 25 mg, and a University of Florida study found decaf espresso shots ranging from 3 to 15.8 mg. Most decaf is made by removing caffeine from green beans with water, carbon dioxide, or an FDA-permitted solvent such as methylene chloride or ethyl acetate. For most people, decaf is an easy way to keep the coffee ritual while cutting caffeine by roughly 85 to 98%.
"Decaf" sounds like zero, and many people order it late at night, during pregnancy or while quitting caffeine assuming it's caffeine-free. It isn't, and the amount varies more than you might expect. Below: how much caffeine is really in decaf, how the caffeine gets taken out, what the methylene chloride debate is about, and whether decaf fits your goals.
How Much Caffeine Is in Decaf? The Numbers
| Drink | Decaf caffeine | Regular version | Source |
|---|---|---|---|
| Brewed coffee, 8 oz | 2–15 mg | About 96 mg | FDA; Mayo Clinic |
| Instant coffee, 8 oz | About 2–5 mg | About 62 mg | Mayo Clinic; Health Canada |
| Espresso, 1 shot | 3.0–15.8 mg (Starbucks shots tested) | About 63 mg per 1 oz | McCusker et al., 2006; Mayo Clinic |
| Coffee-shop decaf, 16 oz | 0–13.9 mg (10 outlets tested) | Varies widely | McCusker et al., 2006 |
| Starbucks Grande Decaf Pike Place Roast, 16 oz | About 25 mg | 315–390 mg (Grande Pike Place) | Starbucks |
Starbucks figures are as listed on starbucks.com when we checked in November 2026 and are described by Starbucks as approximate. Lab figures come from samples bought in Florida coffee shops in the mid-2000s; your local decaf may differ.
Two studies from the University of Florida show why "decaf" is a range rather than a number. In 2003, researchers testing specialty coffees bought from coffee shops found that the decafs had less than 17.7 mg of caffeine per serving, while caffeinated versions ranged from 58 to 259 mg (McCusker et al., 2003). In a 2006 follow-up, 10 decafs from different outlets ranged from 0 to 13.9 mg per 16 oz, and six Starbucks decaf espresso shots from the same store ranged from 3.0 to 15.8 mg, a fivefold spread for the same drink (McCusker et al., 2006). The authors noted that people on caffeine-restricted diets should know decaf may still contain caffeine.
For full charts of regular coffee by size and brand, see how much caffeine is in coffee.
How Many Cups of Decaf Add Up to One Regular Coffee?
Because decaf varies, the answer is a range. These are our calculations from the figures above:
| Decaf you drink | Caffeine per cup | Cups to equal one 8 oz regular coffee (96 mg) |
|---|---|---|
| Low-caffeine 8 oz decaf | 2 mg | About 48 |
| High-end 8 oz decaf | 15 mg | About 6 |
| Starbucks Grande decaf (16 oz) | About 25 mg | About 4 |
| Decaf latte with two high-end shots | About 32 mg | About 3 |
One or two cups of decaf are a trivial amount of caffeine for most people. But three or four large decafs a day can add up to as much caffeine as a small regular coffee. That matters if you are very sensitive to caffeine, trying to sleep better, or in the final stage of quitting.
How Is Coffee Decaffeinated?
Caffeine is removed from green (unroasted) beans, which are first softened with water or steam so the caffeine can be drawn out, then dried and roasted as usual. There are four main methods:
| Method | How it works | Uses a chemical solvent? |
|---|---|---|
| Methylene chloride | Beans (or water that has soaked the beans) are washed with methylene chloride, which binds to caffeine. The solvent is then removed and the beans are steamed, dried and roasted. | Yes. FDA limit: 10 ppm residue in decaf roasted or instant coffee (21 CFR 173.255). |
| Ethyl acetate | Same idea with ethyl acetate, a compound that also occurs naturally in fruit. Some brands call this "naturally decaffeinated" for that reason. | Yes. FDA permits it for decaffeinating coffee and tea under good manufacturing practice (21 CFR 173.228). |
| Swiss Water Process (water processing) | Beans soak in water saturated with coffee's other soluble compounds, so mainly caffeine moves out; the water is passed through carbon filters to trap the caffeine and reused. | No. |
| Supercritical CO2 | Moist beans are exposed to carbon dioxide under high pressure, which acts like a solvent that pulls out caffeine and is then released as gas. | No (uses carbon dioxide). |
Packages often don't say which method was used. If it matters to you, look for "Swiss Water Process," "water processed" or "CO2 process" on the bag, or ask the roaster. If the label says nothing, it is often a solvent method.
Methylene Chloride in Decaf: What the Debate Is About
Methylene chloride is an industrial solvent that, at high exposures, is linked to serious health effects, which is why its use in decaf draws attention. The FDA has allowed it in coffee decaffeination for decades, with leftover residue capped at 10 parts per million (0.001%) in decaf roasted coffee and decaf instant coffee (21 CFR 173.255). Because methylene chloride boils at a low temperature, most of it is driven off when beans are dried and roasted.
In December 2023, the Environmental Defense Fund and other groups filed a food additive petition asking the FDA to remove methylene chloride, along with benzene, ethylene dichloride and trichloroethylene, from the food additive regulations. As of November 2026, the FDA lists that petition as "under review"; it reopened public comments in May 2026, with a June 29, 2026 deadline (FDA petition status, docket FDA-2023-F-5684). Until the FDA acts, methylene chloride decaf remains legal in the U.S. If you want to avoid it, choosing Swiss Water or CO2 decaf is a simple workaround.
Is Decaf Coffee Good or Bad for You?
Decaf keeps most of coffee's other compounds, such as polyphenols, and large observational studies suggest it shares many of regular coffee's associations with better health:
- Mortality: In the UK Biobank study of nearly 500,000 adults followed for about 10 years, coffee drinking was linked to lower risk of death, and the researchers saw similar associations for decaffeinated coffee as for ground and instant (Loftfield et al., JAMA Internal Medicine, 2018).
- Heart disease: A 2022 analysis of 449,563 UK Biobank participants found 2–3 cups a day of decaf was associated with a 14% lower risk of death from any cause (hazard ratio 0.86) and lower risk of cardiovascular disease compared with non-coffee drinkers. Ground and instant coffee, but not decaf, were also linked to fewer arrhythmias (Chieng et al., European Journal of Preventive Cardiology, 2022).
These are observational studies: they show associations, not proof that decaf causes better health, and coffee drinkers may differ from non-drinkers in other ways. Still, they offer reassurance that switching to decaf doesn't mean giving up whatever benefits coffee may have. For people whose sleep, anxiety, blood pressure or heart rhythm is affected by caffeine, decaf may be the better trade. See caffeine, anxiety and sleep and will quitting coffee lower blood pressure.
Who Should Count the Caffeine in Decaf?
- Pregnant people: ACOG advises less than 200 mg of caffeine a day during pregnancy (ACOG). Decaf fits easily, but several large decafs still count.
- People told to avoid caffeine entirely for a heart rhythm problem, a medication interaction or another condition: ask your doctor whether a few milligrams matter in your case.
- Very caffeine-sensitive people, or anyone who gets jittery or sleepless from small amounts.
- Evening drinkers with sleep problems: one small decaf is unlikely to matter, but a big decaf latte after dinner is not zero. See how long caffeine stays in your system.
- People finishing a caffeine taper who want to reach true zero.
Using Decaf to Quit or Cut Back on Caffeine
Decaf is one of the easiest tools for cutting caffeine because it keeps the taste, warmth and routine. But switching overnight from several regular cups to decaf is effectively quitting cold turkey. In a major review of caffeine withdrawal, symptoms usually began 12–24 hours after the last dose, peaked at 20–51 hours and lasted 2–9 days, and they appeared after stopping doses as low as 100 mg a day; about half of people in experimental studies got a headache (Juliano & Griffiths, Psychopharmacology, 2004).
A gentler approach is a half-caf taper:
- Days 1–3: Mix your usual coffee about 75% regular, 25% decaf.
- Days 4–6: Go to 50/50.
- Days 7–9: 25% regular, 75% decaf.
- Day 10 on: Full decaf, then decide whether to stay there or move to a caffeine-free drink.
Slow down if headaches or fatigue get in the way. For more detail, read how to quit caffeine without headaches and cold turkey vs gradual withdrawal. If you want something with no caffeine at all, herbal teas such as rooibos and peppermint, or chicory-based drinks, are options; see our coffee alternatives.
Frequently Asked Questions
Does decaf coffee have caffeine?
Yes, a small amount. The FDA says an 8 oz cup of decaf typically has 2 to 15 mg of caffeine, compared with about 96 mg in the same cup of regular brewed coffee. Decaffeinated does not mean caffeine-free.
How much caffeine is in a Starbucks decaf?
Starbucks lists a Grande (16 fl oz) Decaf Pike Place Roast at about 25 mg of caffeine, versus 315 to 390 mg for a regular Grande Pike Place Roast. In a University of Florida study, Starbucks decaf espresso shots ranged from 3.0 to 15.8 mg each.
How many cups of decaf equal one cup of regular coffee?
It depends on the decaf. At the FDA's typical range of 2 to 15 mg per 8 oz, it would take roughly 6 to 48 cups of decaf to match the 96 mg in one 8 oz cup of regular brewed coffee. Higher-caffeine decafs get there faster, so if you drink several large cups a day, the total is worth counting.
Is decaf coffee made with chemicals?
Some is. Many decafs are made by soaking green coffee beans in a solvent, most often methylene chloride or ethyl acetate, which the FDA allows. For methylene chloride, the FDA limits leftover residue to 10 parts per million in decaf roasted coffee. Other decafs use only water (such as the Swiss Water Process) or pressurized carbon dioxide, with no chemical solvent.
Is methylene chloride in decaf coffee safe?
The FDA currently permits it with a 10 ppm residue limit, and most of the solvent evaporates during drying and roasting. Health and environmental groups petitioned the FDA in December 2023 to remove methylene chloride from food uses, and the FDA lists that petition as under review. If you'd rather avoid it, choose decaf labeled Swiss Water Process or CO2 process.
Can I drink decaf while pregnant?
Decaf is generally a low-caffeine choice. ACOG advises keeping caffeine under 200 mg a day during pregnancy, and a typical 8 oz decaf has 2 to 15 mg. Count it toward your daily total, and ask your doctor or midwife what is right for you.
Can switching to decaf cause caffeine withdrawal?
Yes, if you switch all at once from regular coffee. Going from several cups of regular to decaf removes most of your caffeine, and a major review found withdrawal symptoms can appear after stopping as little as 100 mg a day. Mixing regular and decaf and shifting the ratio over 1 to 2 weeks is a gentler way to cut down.
Sources
- U.S. Food and Drug Administration. Spilling the Beans: How Much Caffeine Is Too Much? (decaf typically 2–15 mg per 8 oz; 400 mg/day for most healthy adults).
- Mayo Clinic. Caffeine content for coffee, tea, soda and more (brewed 96 mg, espresso 63 mg, instant 62 mg; decaf values).
- Health Canada. Caffeine in Foods (decaf and instant decaf averages).
- McCusker RR, Fuehrlein B, Goldberger BA, Gold MS, Cone EJ. Caffeine content of decaffeinated coffee. Journal of Analytical Toxicology, 2006;30(8):611-613.
- McCusker RR, Goldberger BA, Cone EJ. Caffeine content of specialty coffees. Journal of Analytical Toxicology, 2003;27(7):520-522.
- Starbucks. Decaf Pike Place Roast nutrition (Grande, caffeine about 25 mg).
- U.S. Code of Federal Regulations. 21 CFR 173.255, Methylene chloride; 21 CFR 173.228, Ethyl acetate.
- U.S. Food and Drug Administration. Food Additive and Color Additive Petitions Under Review: petition to remove benzene, ethylene dichloride, methylene chloride and trichloroethylene (filed Dec. 21, 2023; docket FDA-2023-F-5684).
- Loftfield E, Cornelis MC, Caporaso N, et al. Association of Coffee Drinking With Mortality by Genetic Variation in Caffeine Metabolism: Findings From the UK Biobank. JAMA Internal Medicine, 2018;178(8):1086-1097.
- Chieng D, Canovas R, Segan L, et al. The impact of coffee subtypes on incident cardiovascular disease, arrhythmias, and mortality: long-term outcomes from the UK Biobank. European Journal of Preventive Cardiology, 2022;29(17):2240-2249.
- Juliano LM, Griffiths RR. A critical review of caffeine withdrawal: empirical validation of symptoms and signs, incidence, severity, and associated features. Psychopharmacology, 2004;176(1):1-29.
- American College of Obstetricians and Gynecologists. Moderate Caffeine Consumption During Pregnancy (Committee Opinion No. 462).
Switch to Decaf Without the Withdrawal Slump
NOCAF builds a step-by-step taper plan, tracks every cup (decaf included) and helps you ride out headaches and cravings.