Perfect Amount of Coffee for 3-Cup Chemex: Brewing Made Easy

Matty Victor

Looking to brew a perfect cup of coffee for your 3 cup Chemex but not quite sure how much coffee to use? Well, worry not, because we’ve got you covered! Whether you’re a coffee connoisseur or just a casual coffee lover, finding the right coffee-to-water ratio is crucial for achieving that rich, flavorful cup of joe. In this article, we’ll guide you through the process of brewing with a 3 cup Chemex, providing you with all the insider tips and tricks to make your coffee experience even more enjoyable. So grab your favorite mug and let’s explore the world of coffee brewing together!


Welcome to our comprehensive guide on getting the perfect coffee brew using a 3 cup Chemex! In this article, we will dive into the details of how much coffee you should use, why it matters, and the best tips and techniques to achieve a delicious cup of joe. So grab your Chemex, and let’s get started!

What is a 3 Cup Chemex?

A 3 cup Chemex is a pour-over coffee maker known for its elegant design and ability to produce a clean and flavorful coffee. It is made of high-quality borosilicate glass, which is non-porous and does not absorb any flavors or odors. The three-cup capacity is perfect for serving coffee for yourself or sharing with a couple of friends.

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Why Does the Amount of Coffee Matter?

The amount of coffee you use in your Chemex plays a crucial role in determining the strength and flavor profile of your brew. Using too little coffee can result in a weak and under-extracted cup, while using too much can lead to an overpowering and bitter taste. Therefore, finding the right balance is essential for a perfect brew.

How Much Coffee to Use for a 3 Cup Chemex?

When it comes to a 3 cup Chemex, a general guideline is to use 1 gram of coffee for every 15 grams of water. This ratio provides a balanced and well-extracted cup of coffee. Here’s a step-by-step process to calculate the ideal amount of coffee:

Step 1: Measure the Water

Start by measuring 450 grams of water. This should fill your 3 cup Chemex comfortably.

Step 2: Weigh the Coffee

Next, weigh out 30 grams of coffee beans. Adjust the amount based on your preference for a stronger or milder brew.

Step 3: Grind the Coffee

Grind the coffee beans to a medium-coarse consistency. This ensures proper extraction without over or under-extracting the flavors.

Step 4: Pre-wet the Filter

Place a Chemex filter in the dripper and rinse it with hot water. This helps remove any paper taste and preheats the Chemex.

Step 5: Add the Coffee

Add the ground coffee to the pre-wet filter, distributing it evenly. Give the Chemex a gentle shake to settle the grounds.

Step 6: Start the Pour

Begin pouring hot water (around 200°F or 93°C) over the coffee grounds in a circular motion, starting from the center and working your way outwards.

Step 7: Brew Time

Allow the coffee to brew for about 3-4 minutes. Adjust the brew time according to your taste preferences.

Step 8: Serve and Enjoy

Once the water has drained through the filter, remove the dripper and serve your freshly brewed coffee. Sit back, relax, and savor the rich flavors!

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Tips for the Perfect Chemex Brew

Here are some additional tips to enhance your Chemex brewing experience:

1. Water Temperature Matters

Make sure the water you use is at the right temperature. Too hot, and you risk scorching the coffee; too cold, and the extraction may not be optimal. Aim for around 200°F (93°C) for the best results.

2. Use Freshly Roasted Beans

Invest in high-quality, freshly roasted beans. Coffee beans lose their freshness and flavor over time, so it’s essential to use them within a few weeks of roasting.

3. Experiment with Grind Size

Play around with the grind size to find the sweet spot for your taste preferences. A finer grind will yield a stronger brew, while a coarser grind will result in a milder cup.

4. Bloom the Coffee

Before starting the main pour, pour a small amount of water over the grounds and let them bloom for about 30 seconds. This helps release the trapped gases and allows for better extraction.

5. Stir the Slurry

During the brew process, give the slurry (the mixture of coffee and water) a gentle stir. This ensures even extraction and a more balanced cup.

6. Clean Your Chemex

Regularly clean your Chemex to remove any residue or buildup that could affect the taste of your coffee. A simple rinse with warm water after each use should suffice.

Advantages of a 3 Cup Chemex

The 3 cup Chemex comes with several advantages that make it a favorite among coffee aficionados:

Elegant design
Produces clean, flavorful coffee
Non-porous glass material
Perfect serving size for individuals or small groups

Difference between Chemex and Other Brewing Methods

While the Chemex shares similarities with other pour-over brewing methods, such as the V60 or Kalita Wave, there are a few key differences:

The Chemex is known for its thicker filters, which result in a cleaner and less oily cup of coffee. The V60, on the other hand, uses thinner filters and allows for a quicker brew time.

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In terms of design, the Chemex stands out with its hourglass shape and elegant glass handle. The V60 and Kalita Wave have a more minimalistic design with smaller brewing cones.

Ultimately, the choice between these brewing methods comes down to personal preference and the specific characteristics you enjoy in your coffee.


Mastering the art of brewing coffee with a 3 cup Chemex requires attention to detail and experimentation. By following the recommended coffee-to-water ratio and using the right techniques, you can enjoy a delicious, well-balanced cup of coffee every time. Remember to adjust the variables to your taste preferences and have fun exploring the world of coffee flavors. Happy brewing!

FAQs (Frequently Asked Questions)

Q: How do I measure the amount of coffee for a 3-cup Chemex?

A: To measure the right amount of coffee for a 3-cup Chemex, you will need about 15 to 18 grams of coffee grounds. This measurement can vary depending on your personal preference, but it is a good starting point. You can use a digital scale to accurately measure the coffee, ensuring consistency in your brew.

Q: What grind size should I use for a 3-cup Chemex?

A: For a 3-cup Chemex, a medium-coarse grind is recommended. This grind size allows for a balanced extraction, ensuring that your coffee does not taste too weak or bitter. It should have a texture similar to coarse sea salt. Avoid using a fine grind, as it can lead to over-extraction and a bitter taste in your brew.

Q: How long should I brew coffee in a 3-cup Chemex?

A: The brewing time can vary depending on various factors such as water temperature, grind size, and personal preference. However, as a general guideline, you can aim to complete the brewing process within 3 to 4 minutes. If your brew is taking significantly longer or shorter than this time, you may need to adjust your grind size or brewing technique.

Q: What is the ideal water temperature for brewing coffee in a 3-cup Chemex?

A: The ideal water temperature for brewing coffee in a 3-cup Chemex is around 200°F (93°C). Boil your water and allow it to cool for about 30 seconds off the boil to reach this temperature. Water that is too hot can result in over-extraction and a bitter taste, while water that is too cold may not extract enough flavor from the coffee.

Q: How do I clean and maintain my 3-cup Chemex?

A: Cleaning and maintaining your 3-cup Chemex is a simple process. After each use, rinse the Chemex with warm water and a mild detergent, ensuring that all coffee residue is removed. Avoid using harsh chemicals or abrasive cleaning tools as they can damage the glass. It is also recommended to occasionally deep clean your Chemex by using a mixture of water and vinegar to remove any built-up oils or stains. Rinse thoroughly after using vinegar and dry the Chemex completely before storing it.

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Matty Victor

An expert in tasting the nuances of coffee. often talks about the different flavors of coffee from different regions of the world "The taste of coffee is an endless journey."


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