Barista poring hot water into chemex

How to Clean a Chemex Coffee Maker? (Quick, Easy & Effective)

Henry Muller

Do you ever find your Chemex coffee tasting sour or bitter? It might be due to the residue build-up.

Cleaning a Chemex coffee maker is a simple yet vital part of ensuring that every cup you brew retains its pure, rich flavors.

In this article, I'll walk you through the details of what Chemex is, the supplies you need for it, its benefits, and most importantly, how to clean and maintain your Chemex in pristine condition, so you can continue enjoying that exquisite pour-over experience.

Supplies you want to Clean a Chemex

Cleaning a Chemex coffee maker is handy, but you'll need a few essential supplies to ensure it's done effectively. To keep your Chemex in the best condition and your coffee tasting its best, you'll require the following items for cleaning:

1) Warm water

You'll require warm water to dissolve coffee residues and ensure a thorough rinse of your Chemex.

2) Mild dish soap

Opt for a mild, unscented dish soap for a thorough clean. Strongly scented soaps can affect the taste of your coffee.

3) Bottlebrush

A bottle brush is an essential tool for cleaning the interior of your Chemex, particularly the neck and spout.

4) Soft cloth or sponge

Use a gentle cloth or sponge to scrub the exterior and tackle any stubborn stains.

5) Uncooked rice

Uncooked rice is effective for removing tough coffee stains and residues from the glass.

6) White vinegar

Periodically, white vinegar can be used to eliminate mineral deposits or hard water stains.

How to clean a Chemex coffee maker?

Step 1: Disassemble your Chemex

First, you need to begin by disassembling your Chemex coffee brewer. Remove the wooden collar and the leather tie for cleaning. Pull out the Chemex paper filter and discard any used coffee grounds.

Step 2: Rinse with warm water

Start by rinsing the Chemex properly with warm water. Ensure that you wash both the interior and exterior of the glass. This initial rinse will aid you in removing loose coffee residues.

Step 3: Prepare a soapy solution

Fill your sink with some warm water and add a small amount of mild, unscented dish soap. combine it to create a soapy solution and use this solution to clean the Chemex.

Step 4: Take a bottle brush

Immerse a bottle brush into the soapy solution and gently start scrubbing the interior of the Chemex. Pay additional attention to the neck and spout, as these areas can have coffee oils and residues.

Step 5: Rinse thoroughly

Once you are done with the interior, thoroughly rinse it with warm water. Make sure there's no soap residue left, as it can affect the taste of your coffee.

Step 6: Clean the exterior well

Take a soft cloth or sponge and gently scrub off the exterior of the Chemex. It will help you remove any stains or coffee marks on the glass.

Step 7: Add uncooked rice

If you find any stubborn coffee stains or residues, linger on your Chemex then add some warm water and uncooked rice. Mix it well, and the abrasiveness of the rice will help clean off the stains. Then, rinse the Chemex again thoroughly.

Step 8: Wash using vinegar periodically

If you find deposits or hard water stains on your Chemex, impacting its elegance, try using white vinegar. Pour a solution of vinegar and water into the Chemex and keep it aside for about 30 minutes. Then, rinse the Chemex thoroughly with water.

Step 9: Dry and reassemble

Let the Chemex air dry or use a soft cloth to dry it completely. Once done, reassemble your Chemex with the wooden collar and leather tie, and you're ready to brew the next delicious batch of coffee.

Benefits of cleaning Chemex regularly

1) Ensures fresh taste

Regular cleaning prevents the unnecessary buildup of coffee oils and residues, preserving the purity of each brew and ensuring that your coffee tastes consistently fresh.

2) Extends longevity

Proper cleaning removes stains and prevents hard water deposits, which can degrade the appearance of your Chemex over time.

3) Enhances aesthetics

A clean Chemex looks visually more appealing and showcases its elegant design, adding a touch of sophistication to your coffee ritual.

4) Safe for health

Proper cleaning ensures that no lingering residue or soap affects the taste of your coffee or your health.

5) Preserve performance

By preventing unnecessary clogs and blockages, regular cleaning helps maintain optimal water flow, which is vital for Chemex's brewing performance.

6) Prevents bitterness

Proper cleaning eliminates any bitter flavors caused by stale coffee oils that may stick to the glass.

7) Easy brewing

A clean Chemex is more efficient, making your coffee brewing process smoother and hassle-free.

8) Long-term savings

Regular cleaning can extend the lifespan of your Chemex, saving the cost of replacing it.

How to store Chemex when not in use?

1) Clean it thoroughly

Before storing your Chemex, make sure it's thoroughly cleaned. It includes cleaning the interior and exterior well to discourage coffee oils and residues from becoming stubborn stains during storage.

2) Store dry

It's vital to store your Chemex when it's dry enough to prevent mold growth. Make sure that no moisture is left inside the Chemex, so air dry it completely.

3) Avoid contact with direct sunlight

Keep your Chemex away from direct sunlight. Exposure to sun rays for a long can cause the wooden collar and leather tie to fade over time.

4) Take proper care of fragile parts

To prevent accidental breakage, put your Chemex in a safe location where there is no risk of being knocked over or having heavy objects placed on it.

5) Cover or wrap well

Make sure you cover your Chemex with a cloth or soft material to protect it from dust. However, the material that you use to cover must have some room left for air to pass to prevent moisture buildup.

Cares you need to take while washing a Chemex

1) Use a mild soap

Opt for a mild, unscented dish soap while cleaning your Chemex. Strongly scented soaps can leave lingering odors that can affect the taste of your coffee.

2) Scrub gently

When using a bottle brush or sponge, be gentle enough while scrubbing the interior and exterior of the Chemex. Avoid using any abrasive materials or aggressive scrubbing, that can damage the glass.

3) Rinse thoroughly

Ensure you rinse your Chemex thoroughly with warm water after cleaning. Any soap residue left behind can negatively impact the taste of your coffee.

4) Dry completely

Before storing your Chemex, make sure it's completely dry. Any lingering moisture left inside the Chemex can lead to mold.

5) Avoid high temperatures

Do not expose your Chemex to severe temperature changes. Direct shifts from hot to cold can cause the glass to crack or shatter.

6) Regular maintenance

Clean your Chemex at regular intervals to prevent coffee oils and residues from building up and becoming stubborn stains.

Wrapping up

Here I have shared with you how to clean and store a Chemex. A clean Chemex is the gateway to brewing coffee that consistently delights your senses.

Regular cleaning and proper storage of your Chemex not only extend its lifespan but also maintain the purity of your coffee's flavors.

By following these simple steps and precautions, you can enjoy the elegance and richness of Chemex-brewed pour-over coffee.


1) Is it safe to use a brush while cleaning Chemex?

Yes, a soft bottle brush is safe for cleaning a Chemex, as long as it's handled gently.

2) How often should you use your Chemex coffee maker?

You can use your Chemex daily or as often as you desire, just make sure you clean and store it properly.

3) What is the best way to clean the wooden collar of Chemex?

Clean the wooden collar of a Chemex by wiping it with a damp cloth and avoiding submerging it in water.

4) Can you put a Chemex in the dishwasher?

It's not recommended to put a Chemex in the dishwasher, as it can potentially damage the glass and wooden components.

5) What are some signs that my Chemex needs a deep cleaning?

Visible coffee stains, an unpleasant taste in your coffee, or the presence of coffee residues are some signs that your Chemex needs a deep cleaning include 


Henry Muller

Team TAB
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I am a barista by profession hailing from NC. My journey began in my late teens when I started working as a barista in a local coffee shop. My passion for coffee quickly became evident as I immersed myself in the art of espresso extraction, latte art ...