The Perfect Amount of Coffee for a Chemex 6 Cup Brewer

Matty Victor

If you’re looking to kickstart your day with a rich, flavorful cup of coffee, then the Chemex 6 cup is an excellent choice. This classic pour-over brewing method offers a unique coffee experience that is both smooth and bold. But before you embark on your coffee-making adventure, you might be wondering just how much coffee you need to make the perfect brew. Well, fear not! In this article, we’ll guide you through the art of brewing coffee in a Chemex 6 cup, ensuring you get the ideal ratio of coffee to water for a delicious cup of joe every time. So, grab your Chemex, grind those beans, and let’s get brewing!


Welcome to this comprehensive guide on the ideal amount of coffee to use for a Chemex 6 cup. In this article, we will explore what a Chemex is, why it has gained popularity among coffee enthusiasts, and how to achieve the perfect brew using this specific size. We will provide detailed recommendations and explanations to ensure you achieve excellence in your coffee brewing experience. So, let’s dive in!

What is a Chemex?

A Chemex is a manual pour-over coffee maker that was invented in 1941 by a chemist named Peter Schlumbohm. It is made of high-quality glass and features a unique hourglass-shaped design. The Chemex is revered for its ability to produce a clean, crisp, and flavorful cup of coffee. Its aesthetic appeal and simplicity of use have made it a popular choice among coffee connoisseurs.

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Why Choose a Chemex?

There are several reasons why coffee enthusiasts opt for a Chemex as their preferred brewing method:

  • The Chemex brewing process allows for maximum control over the extraction process, resulting in a well-balanced and nuanced cup of coffee.
  • Its beautiful glass design makes it an elegant centerpiece in any kitchen or coffee bar.
  • The Chemex filter papers, which are thicker than traditional filters, remove more oils and sediments from the coffee, resulting in a clean and pure taste.
  • Since it is a manual process, brewing coffee with a Chemex allows for a more hands-on and immersive experience.

How to Brew Coffee with a Chemex 6 Cup

Now, let’s delve into the specifics of brewing coffee with a Chemex 6 cup. Follow these steps for a delicious cup of coffee:

Step 1: Gather Your Equipment

Before starting the brewing process, make sure you have the following:

  • A Chemex 6 cup
  • Chemex filter papers
  • A kettle
  • A coffee grinder
  • Freshly roasted coffee beans
  • A digital scale
  • A timer
  • A spoon or stirrer

Step 2: Grind Your Coffee

To achieve the best results, grind your coffee beans just before brewing. For a Chemex 6 cup, a medium-coarse grind is recommended. This grind size allows for optimal extraction without resulting in a bitter taste.

Step 3: Prepare the Chemex and Filter

Unfold the Chemex filter paper and place it in the top section of the brewer, ensuring that the thicker portion is facing the spout. Rinse the filter with hot water to remove any papery taste and preheat the vessel.

Step 4: Measure and Add Coffee

For a Chemex 6 cup, a general guideline is to use 42 grams (approximately 7 tablespoons) of coffee for 700ml of water. However, this can be adjusted according to your personal preference. Start with this ratio and make modifications in subsequent brews to find the perfect taste for you.

Step 5: Begin the Brewing Process

Place the Chemex on a scale and tare it to zero. Slowly pour water over the coffee in a circular motion, wetting all the grounds evenly. Allow the coffee to bloom for around 30 seconds, then continue pouring water in a slow and controlled manner. Aim to maintain a consistent water level just below the rim of the Chemex.

Step 6: Serve and Enjoy

Once all the water has been poured, allow the coffee to fully drain from the Chemex. Remove the filter paper and dispose of it. Pour the brewed coffee into your favorite mug or carafe, and savor each sip.

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Tips for Brewing the Perfect Chemex 6 Cup

To optimize your brewing experience and ensure a delightful cup of coffee every time, consider the following tips:

  • Experiment with different coffee beans and roast profiles to find your preferred flavor profile.
  • Use a gooseneck kettle for precise water pouring. This allows for better control over the brewing process.
  • Invest in a quality burr grinder to achieve a consistent grind size.
  • Use filtered water to enhance the taste and clarity of your coffee.
  • Store your coffee beans in an airtight container away from direct sunlight to maintain freshness.

Advantages and Disadvantages of Using a Chemex 6 Cup

As with any brewing method, there are pros and cons to using a Chemex 6 cup:


  • Produces a clean and bright cup of coffee.
  • Allows for precise control over the brewing process.
  • Elegant and visually appealing design.
  • Chemex filter papers remove oils and sediments, resulting in a smoother taste.


  • Requires manual pour-over technique, which may not be suitable for those seeking a quick and convenient brewing method.
  • Requires additional equipment such as a gooseneck kettle and a burr grinder.

Difference Between Chemex 6 Cup and Other Sizes

The Chemex comes in various sizes, including the 6 cup. The main difference between the Chemex 6 cup and other sizes lies in the amount of coffee and water used. The brewing process itself remains the same, but the ratio of coffee to water varies. It is important to adjust the measurements and grind size accordingly when using different Chemex sizes to achieve the desired taste.

Comparison Table

Chemex Size Coffee Amount Water Amount
6 cup 42g (7 tbsp) 700ml
8 cup 56g (9 tbsp) 900ml
10 cup 70g (11 tbsp) 1000ml

Important Notes

When brewing coffee with a Chemex, consider the extraction time and adjust your grind size accordingly. A finer grind will result in a longer extraction time, while a coarser grind will yield a shorter extraction time. Make sure to taste your coffee and make modifications to find your preferred extraction time.


In conclusion, brewing coffee with a Chemex 6 cup is an art form that allows coffee enthusiasts to have full control over the brewing process. By following the recommended guidelines and experimenting with various coffee beans and ratios, you can create a delightful cup of coffee that meets your preferences. Embrace the journey of mastering the Chemex, and enjoy the process as much as the end result.

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FAQs (Frequently Asked Questions)

Question 1: How do I determine the coffee to water ratio for my Chemex 6 cup?

Determining the coffee to water ratio for your Chemex 6 cup is crucial to achieving the perfect brew. The general rule of thumb is to use 1 to 1.5 tablespoons of coffee for every 6 ounces (or 177 milliliters) of water. Since the Chemex 6 cup has a total capacity of 30 ounces (or 887 milliliters), you would need approximately 5 to 8 tablespoons of coffee grounds for an ideal extraction. However, feel free to experiment with the ratio and adjust it according to your personal taste preferences.

Question 2: Should I grind my coffee beans coarsely or finely for a Chemex 6 cup?

For the Chemex 6 cup, it is recommended to use a medium-coarse to coarse grind size. This grind allows for optimum extraction and prevents over-extraction, resulting in a flavor-rich brew. A finer grind can lead to clogging of the filter and make the coffee overly bitter. On the other hand, a too coarse grind may result in a weak and under-extracted brew. Finding the right grind size is a matter of trial and error, so don’t be afraid to experiment until you find your perfect balance.

Question 3: How long should I let the coffee steep in the Chemex 6 cup?

The ideal steeping time for coffee in the Chemex 6 cup is between 4 to 5 minutes. This allows sufficient time for the coffee to infuse with the water and extract all the desired flavors. However, it is important to note that everyone’s taste preferences differ. You can adjust the steeping time by experimenting with shorter or longer durations to fine-tune the strength and flavor profile of your brew.

Question 4: Can I make a smaller amount of coffee using the Chemex 6 cup?

Absolutely! The Chemex 6 cup is designed to accommodate a range of brewing volumes. If you desire a smaller batch of coffee, you can simply adjust the ratio of coffee to water accordingly. For example, if you want to make a half batch, you can use 2.5 to 4 tablespoons of coffee and adjust the water volume to half of the Chemex’s total capacity. This flexibility makes the Chemex 6 cup a versatile brewing device for both larger and smaller quantities.

Question 5: How should I clean and maintain my Chemex 6 cup?

Cleaning and maintaining your Chemex 6 cup is a relatively simple process. After each use, remove the used coffee grounds and rinse out the glass carafe with warm water. Avoid using harsh detergents or abrasive materials, as they can leave residues or scratch the glass. To remove stubborn coffee stains, you can use a mixture of water and mild dish soap. Additionally, periodically clean the wooden handle and leather tie by handwashing them and allowing them to dry thoroughly. Regular maintenance and care will help ensure the longevity of your Chemex 6 cup and the quality of your coffee.

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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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