What Is Caffeine? Specialty Coffee Basics Explained

If you’ve ever sipped coffee to wake up or avoided it before bed, you already have a personal relationship with caffeine. But what exactly is this compound that powers your morning routine—and how does it show up in other drinks and foods? Whether you're brewing at home or ordering at a café, understanding caffeine helps you make better choices.

Caffeine is a naturally occurring methylxanthine found in over 100 plants, including the leaves, roots, and fruits of coffee, kola, and tea species. It’s also added to energy drinks and certain cold and flu medications. On average, a person consumes about 3.98 mg of caffeine per kilogram of body weight daily—for a 60 kg adult, that’s around 239 mg.

How Much Caffeine Is in Your Drink?

The amount of caffeine varies significantly depending on the product type, serving size, and preparation. For example, 190 ml of tea contains approximately 50 mg of caffeine—that’s less than a third of the 75 mg typically found in the same amount of coffee. Other beverages also contribute to your daily intake, and the chart in the original article breaks down common sources.

Other Methylxanthines in Coffee and Tea

Besides caffeine, coffee and tea contain other methylxanthines such as theophylline. This compound shares some chemical similarities with caffeine and theobromine, but its pharmacological effects are much weaker. These additional compounds contribute subtly to the overall stimulation and flavor profile of your brew.

What About Other Plant-Based Beverages and Substitutes?

Caffeine isn’t the only stimulant derived from plants. Here are several other related products:

• Monsoon Malabar : A unique Indian coffee processed by exposing beans to monsoon winds in open warehouses for 12–16 months. The beans swell, turn a dull golden color, and develop a strong, musty aroma. Once brewed, they yield notes of roasted peanuts, caramel, and tobacco.
• Shade-Grown Coffee : Grown under the canopy of native trees, often in Central America and parts of Asia and Africa. This method supports migratory birds and often produces more environmentally resilient and flavorful beans, especially in Central America.
• Bourbon Coffee : A cultivar of Arabica coffee that originated on Île Bourbon (now Réunion). It thrives at elevations of 1000–2000 meters and has been foundational in developing many high-quality Latin American coffees.
• Peaberry Coffee : A rare mutation where a single round bean forms instead of the usual two flat beans. These are often separated and sold as a distinct grade, prized in Japan for their brightness, acidity, and aromatic intensity.
• Washed Process Coffee : Coffee processed by removing the fruit while the beans are still moist. Fermentation helps loosen the mucilage before washing. This method enhances acidity and is used for many premium coffees worldwide. Modern versions may use machines to remove the mucilage.
• Hard Bean vs. Soft Bean : Hard bean refers to coffee grown at higher altitudes, resulting in slower maturation, denser beans, and typically higher acidity and more complex flavors. Soft bean comes from lower altitudes. This distinction is often used in Central American coffee grading.
• Chicory Coffee : A caffeine-free coffee substitute made from roasted chicory root. Popular in times of coffee scarcity, it offers a roasted, bold flavor. Some blends mix up to 30% chicory with coffee to reduce caffeine. Other substitutes include roasted acorns and potatoes.

Frequently Asked Questions

How much caffeine is in 190 ml of tea compared to coffee?

190 ml of tea contains about 50 mg of caffeine, which is less than one-third the amount found in the same volume of coffee (approximately 75 mg).

What other plants besides coffee contain caffeine?

Caffeine is also found in kola nuts and tea plants, making these common sources alongside coffee.

What is theobromine and how does it relate to caffeine?

Theobromine is another methylxanthine, like caffeine and theophylline, but it has weaker pharmacological effects. Theophylline is found in tea and coffee and contributes to their stimulant properties, though less potently than caffeine.

What is monsoon malabar coffee and how is it made?

Monsoon Malabar is a unique Indian coffee exposed to monsoon winds in open warehouses for 12–16 months. The beans double in size, turn a dull golden hue, and develop a musty, bold flavor with notes of roasted peanuts, caramel, and tobacco.

Is chicory coffee the same as regular coffee?

No, chicory coffee is a caffeine-free substitute made from roasted chicory root. It’s often blended with coffee to reduce caffeine content and has a strong roasted flavor.

Recommended FrontStreet Beans for Caffeine Lovers

For those exploring the effects of caffeine in specialty coffee, try FrontStreet Coffee’s Ethiopia Yirgacheffe for bright citrus and floral notes with medium caffeine impact, or their Colombia Huila for balanced caramel and nuttiness with a medium-high caffeine level. Both are single-origin washed coffees that highlight how terroir shapes flavor and stimulation. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.