Most caffeine guides you find online are written by dietitians who have never set foot inside a commercial roastery. They look at coffee through a clinical lens, but as a roaster, I see a completely different side of the story.

The amount of caffeine in your cup is not a number, as it’s a variable that changes based on the bean, the roast, and how you choose to brew it. If you want to understand your daily caffeine intake, you need to look at it from the roastery floor.

Key Takeaways

The brew method dictates the dose: While espresso is highly concentrated, a standard cup of drip or cold brew delivers a higher total dose of caffeine per serving.
Bean genetics are critical: Robusta beans naturally contain almost double the caffeine of Arabica beans, making your bean choice the most powerful variable.
Decaf is never completely zero: True decaffeinated coffee contains trace amounts of caffeine, but the level is too low to impact your sleep or trigger jitters.

How much caffeine is in a standard cup of coffee?

The quick answer is that a standard 240ml cup of brewed coffee contains between 95 and 165 milligrams (mg) of caffeine. However, using the word "standard" is doing a lot of heavy lifting here because it hides massive variations in preparation.

The extraction process determines how much caffeine is drawn out of your coffee grounds. When you are looking for a reliable guide, comparing the different coffee brewing methods is the best place to start.

Here is a breakdown of the typical caffeine levels across different styles of coffee, including some of my own observations on how each method performs. To put the numbers in perspective, 100mg of caffeine is equal to 0.1 grams, so even the strongest brew delivers a very small amount by weight.

Comparison: Caffeine Levels by Brew Method

Brew Method	Serving Size	Caffeine (approx.)	Nicolas' Rating
Espresso (single shot)	30ml	60–75mg	The most misunderstood extraction. High concentration but low total dose.
Long Black (double shot)	120ml	120–150mg	Double the punch, served over hot water to keep the crema intact.
Filter / Pour Over	240ml	95–165mg	High total caffeine due to the long, steady extraction process.
AeroPress	180ml	100–135mg	Fast and highly controlled, a reliable mid-range dose.
French Press	240ml	100–135mg	Full immersion brewing that yields a robust and steady release.
Moka Pot	60ml	105–130mg	Stovetop power. Intense, concentrated, and heavy-bodied.
Cold Brew	240ml	150–240mg	The heavyweight champion. Long steeping times pull out maximum caffeine.
Pod / Capsule	40ml	50–80mg	The most consistent dose in the kitchen due to pre-measured capsules.
Decaf (Swiss Water)	240ml	Under 3mg	The perfect nightcap for coffee lovers who want the flavour without the buzz.

Does the type of coffee bean change how much caffeine you get?

Yes, the type of bean you choose changes your caffeine intake significantly. The coffee world is dominated by two main species, and their genetic makeup is completely different.

Robusta vs. Arabica: Robusta beans naturally contain roughly double the caffeine of Arabica beans. As a roaster, this is a key factor when blending. For example, our Robusta coffee beans range runs at that higher caffeine level, which is useful to know if you are trying to calibrate your daily intake.

The Roast Level Myth: There is a common assumption that dark roast coffee has more caffeine because it tastes bold and bitter. This is actually incorrect. The roasting process slowly breaks down caffeine under high heat. Lighter roasts retain a fraction more caffeine when measured by weight, while darker roasts expand in size, meaning they can have slightly less caffeine when measured by the scoop.

How much caffeine is in decaf coffee, and how is it removed?

A properly decaffeinated cup of coffee contains less than 3mg of caffeine. When comparing decaf vs normal coffee, you are looking at a reduction of about 97% or more of the original caffeine content.

At Di Stefano, we are incredibly selective about our decaffeination process. We rely on chemical-free water decaffeination methods, like the Swiss Water Process, to ensure our raw green beans are handled gently.

This process removes the caffeine while preserving the delicate flavour compounds we work so hard to roast. If you want to understand the exact science behind how we do this, read our complete guide on how coffee is decaffeinated.

The three primary decaffeination methods used globally include:

The Solvent Method: This is the most common commercial process. It uses chemical solvents like Methylene Chloride or Ethyl Acetate to bond with the caffeine and strip it from the green beans.

The Swiss Water Process: This is a 100% chemical-free method. It uses only water and carbon filters to slowly extract the caffeine through osmosis, leaving the organic flavour molecules intact. Our decaf coffee contains less than 0.1% caffeine, which is less than 0.006g of caffeine per pod.

The Carbon Dioxide (CO2) Method: This process uses liquid carbon dioxide under high pressure to selectively dissolve the caffeine, leaving the proteins and carbohydrates untouched.

How much caffeine is in a coffee pod?

A standard capsule contains between 50mg and 80mg of caffeine. The exact amount depends on the specific blend of beans sealed inside the capsule.

When you use a pod, you are getting a highly controlled extraction. Unlike open-method brewing where your pour speed and water temperature can vary, a pod machine uses a fixed volume of water and pressure.

This makes it a highly consistent way to manage your daily intake. If you prefer a stronger, more energetic pod, our Robusta coffee pods are designed to deliver a more intense caffeine kick.

How much caffeine is safe to drink per day?

According to Food Standards Australia New Zealand (FSANZ), a daily intake of up to 400mg of caffeine is perfectly safe for healthy adults. FSANZ sets the same 400mg daily limit, but it's worth knowing because it's the Australian regulatory body, not the American one cited on most global caffeine guides.

I personally drink more than most because my life revolves around the roastery floor, but I know my tolerance. Everyone metabolises caffeine differently based on genetics, lifestyle, and health. Pregnant individuals should also limit intake to no more than 200mg per day, roughly two standard cups.

Conclusion: Knowing Your Cup

If you want to truly understand your daily caffeine intake, you have to look beyond the general numbers on wellness websites. You need to know your method and your bean. By choosing your roast level and brewing style with intention, you can easily customise your energy levels to match your lifestyle.

If you are looking to cut back on your caffeine without losing the rich, chocolatey ritual of your morning cup, try our Di Stefano Decaf Coffee Beans. It is processed using the clean, chemical-free Swiss Water Process to ensure you get a beautiful cup every time.

FAQ: Your Caffeine Questions Answered

How much caffeine is in a regular coffee in Australia?

A standard long black or flat white purchased at an Australian café typically contains between 120mg and 150mg of caffeine. This is because Australian cafés traditionally use a double shot of espresso as their standard serving size, resulting in a higher dose than a single-shot cup.

Does black coffee have more caffeine than white coffee?

No, adding milk to your cup does not change the amount of caffeine. A latte and a long black made with the same double shot of espresso will contain the exact same amount of caffeine. The milk simply dilutes the flavour profile and slows the absorption rate on your stomach.

How much caffeine is in a decaf coffee?

A standard cup of decaf contains between 2mg and 5mg of caffeine. This trace amount is a natural byproduct of the decaffeination process, which is designed to remove at least 97% of the original caffeine without stripping the bean of its flavour.

How much caffeine is in an AeroPress coffee?

A standard brew using our AeroPress brewing guide will yield approximately 100mg to 135mg of caffeine. This hybrid immersion and pressure method is excellent for extracting a balanced, highly customisable dose.

Does a stronger-tasting coffee have more caffeine?

Not necessarily. The bitter, smoky, or bold flavours of a dark roast are a result of the roasting process, not the caffeine levels. In fact, a lighter roast made with Robusta beans will taste milder but can contain double the caffeine of a dark-roasted Arabica.

Additional Reading

Keen to learn more about coffee roasting? We have a range of articles looking at how to roast coffee:

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About the Author

Nicolas Di Stefano, a third-generation Master Roaster and Director of Di Stefano Coffee, continues his family’s proud legacy of exceptional coffee craftsmanship. Blending traditional Italian roasting methods with a modern dedication to quality, Nicolas ensures every cup embodies the rich flavour and consistency Australians have come to love.