Chemex Bonded Filter Natural Square 100 Count (Pack of 2) - Pure

In this review the Chemex Bonded Filter in natural square form proves to be a straightforward choice for anyone who values clean, consistent pour-over coffee. The biggest reason to buy is simple: the thicker, specialty fiber paper produces a noticeably purer cup by reducing bitterness, acidity, and sediment while remaining compostable and made in the USA. For brewers who want an easy cleanup and predictable extraction that highlights roast character, these bonded filters deliver reliable results without fuss.

Key Features

• PUR E cone shape: The cone geometry ensures uniform extraction across the grounds so brewed coffee tastes balanced and true to the roast.
• Versatile use: These filters work with a wide range of roasts and even tea, making them useful for more than just coffee brewing.
• Made in USA: Manufactured from North American materials and designed for responsible practices, they are fully compostable after use.
• Thicker paper: At about 20-30% thicker than many alternatives, the specialty fiber construction removes undesirable elements like grit and harsh acidity.
• Easy cleanup: No trays or baskets are required, so after brewing simply remove and discard the filter for fast clearing and less mess.
• Compatibility: Fits all Chemex coffeemakers except CM-1, CM-1C, and CM-1GH, making it suitable for most Chemex owners.

Who It's For

These filters are aimed at home brewers who already own a compatible Chemex coffeemaker and want a pure, clear cup that emphasizes flavor clarity and mouthfeel. They suit people who value sustainable materials, prefer an easy cleanup routine, and want durable filters that rarely tear during pouring.

They are less appropriate for users who own the excluded small models (CM-1, CM-1C, CM-1GH) or those looking for a budget-first option; some buyers find the price premium notable compared with generic disposable filters.

Pros & Cons

Pros

• Produces a noticeably cleaner cup by cutting bitterness and reducing sediments.
• Durable, thicker paper that rarely tears and handles pouring well.
• Made in the USA from North American materials and compostable after use.
• Simple cleanup with no trays or baskets required.

Cons

• Some buyers consider the filters pricier than generic alternatives.
• Not compatible with the smallest Chemex models CM-1, CM-1C, and CM-1GH.

Specifications

Our Verdict

The Chemex Bonded Filter Natural Square is a solid choice for anyone brewing with a compatible Chemex who prioritizes flavor clarity and easy cleanup. Its thicker, specialty paper and responsible manufacturing make it worth the premium for drinkers who want a cleaner cup and a durable, compostable filter solution.

Frequently Asked Questions

Do these filters fit my Chemex?
They fit all Chemex coffeemakers except the small CM-1, CM-1C, and CM-1GH models.

Are these filters compostable?
Yes, the filters are manufactured from North American materials and are compostable.

Will these filters change the taste of my coffee?
They are designed to remove bitterness, acidity, and sediment, producing a cleaner, more balanced cup that highlights roast character.