How to Make Chemex Coffee for One: A Simple Single-Cup Recipe
By Chemex Coffeemakers & Filters | Published: 2026-08-03
Category: How-to Guides
Learn the perfect single-cup Chemex recipe with step-by-step instructions, ideal ratios, and pro tips for brewing a delicious cup for one.
Brewing coffee for one can be a delightful ritual, and the Chemex coffeemaker is perfect for crafting a clean, flavorful cup. Whether you're a solo coffee lover or just want a quick morning brew without a full pot, mastering the single-cup Chemex method is a game-changer. In this guide, we'll walk you through a simple, foolproof recipe that highlights the best of your Chemex.
The Chemex's thick bonded filters and elegant design produce a bright, sediment-free cup that's hard to beat. With the right ratio and technique, you can enjoy a barista-quality pour-over right in your kitchen. Let's dive into the details of making the perfect single serving.
Why Choose Chemex for a Single Cup?
The Chemex coffeemaker is renowned for its ability to produce a clean, crisp cup of coffee. Its proprietary CHEMEX BONDED™ filters remove bitter oils and fine grounds, resulting in a smooth, flavorful brew. When brewing for one, these filters are especially beneficial because they ensure that even a small batch is free from over-extraction and bitterness.
Using a smaller Chemex model, such as the Three Cup, is ideal for single servings. It's designed to handle smaller brews while maintaining the same brewing dynamics as larger models. You can also use the classic 6-cup or 8-cup models by scaling down the recipe, but the Three Cup offers the most convenient size for one cup.
- Thick bonded filters trap fines for a clean cup.
- Smaller models like the Three Cup are perfect for solo brewing.
- The iconic design makes every cup feel special.
The Perfect Coffee-to-Water Ratio for One Cup
The golden ratio for Chemex is generally 1:15 to 1:17 (coffee to water). For a single 8-ounce cup, you'll need about 15 to 17 grams of coffee and 250 to 300 grams of water. This ratio ensures balanced extraction, highlighting the coffee's natural sweetness and acidity.
If you prefer a stronger cup, start with a 1:15 ratio; for a lighter, more delicate brew, go with 1:17. Consistency is key, so using a digital scale is highly recommended. Volume measurements can be unreliable due to variations in grind size and bean density.
- Use 15-17 grams of coffee for 250-300 ml of water.
- Adjust ratio to taste: 1:15 for bold, 1:17 for lighter.
- A digital scale ensures accuracy and repeatability.
Step-by-Step Single-Cup Chemex Recipe
Start by heating water to about 200°F (93°C). While the water heats, grind your coffee to a medium-coarse consistency, similar to sea salt. Place a CHEMEX BONDED™ filter in the top of your Chemex, with the triple-fold side facing the spout. Rinse the filter with hot water to remove any paper taste and preheat the glass, then discard the rinse water.
Add the ground coffee to the filter and gently tap to level the bed. Start your timer and pour a small amount of water (about twice the weight of coffee) over the grounds to bloom. Wait 30-45 seconds for the coffee to degas. Then, pour the remaining water in a slow, circular motion, starting from the center and moving outward, keeping the water level below the top of the filter. Aim to finish your pour by 2:30-3:00 minutes and let the water drain completely by 3:30-4:00 minutes.
- Rinse the filter to eliminate paper taste and preheat the brewer.
- Bloom for 30-45 seconds to release CO2.
- Pour in slow, steady spirals to ensure even extraction.
Tips for the Best Single-Cup Brew
To get the most out of your single-cup Chemex, consider these pro tips. First, use freshly roasted, quality beans. The Chemex's clean profile will highlight any defects, so start with good coffee. Second, grind your beans just before brewing. Pre-ground coffee loses flavor quickly, and a consistent grind is crucial for even extraction.
Also, pay attention to water quality. Filtered water makes a noticeable difference. And don't forget to preheat your mug or carafe to keep your coffee hot longer. If you're brewing directly into a cup, you can place the Chemex directly over your mug, but using the Three Cup model with its wooden collar and tie adds stability and a classic look.
- Use freshly roasted beans and grind right before brewing.
- Water temperature around 200°F is ideal.
- Preheat your mug to maintain temperature.
Recommended Accessories for Single-Cup Brewing
While you can brew with just your Chemex and filters, a few accessories can enhance your experience. The CHEMEX BONDED™ FILTERS Pre-folded Squares are a must-have for convenience—they're pre-folded to fit perfectly and save you time. For those who prefer a more eco-friendly option, the Unfolded Natural Half Moon filters are also available and work just as well.

If you're using a Three Cup Chemex, the Wood Collar & Tie 2 is a beautiful and functional addition, providing a comfortable grip and a touch of classic style. And to keep your brewing area clean, the 5.75" Leather Coaster is a stylish way to protect your countertops from drips and heat.
- Pre-folded filters save time and ensure a perfect fit.
- Wood Collar & Tie adds grip and elegance.
- Leather coaster protects surfaces and adds style.
Brewing a single cup of Chemex coffee is a rewarding experience that yields a delicious, clean cup every time. With the right ratio, technique, and a few quality accessories, you can enjoy café-quality coffee at home. Ready to elevate your single-cup brewing? Explore the CHEMEX BONDED™ FILTERS Pre-folded Squares to get started, and don't forget to check out the Wood Collar & Tie 2 for added style and comfort.



