How to BRUW


1. Add COARSE ground coffee between the 100-200ml line, approximately 1/4 cup. This is the perfect amount for a delicious cup of coffee, and foolproof filtering.

2. Fill your jar all the way to the top with cool water, attach the regular lid, and let it sit for 18-24 hours.

3. After your cold brew is done steeping, remove the standard lid and attach the BRUW filter–straw side down–into your coffee.

4. Attach an empty mason jar to the top, flip the whole assembly, and watch as the coffee filters through.


Helpful tips!

The BRUW filter is designed to make cold brewing super simple. If there is any leaking, clogging, or inconvenience, something is WRONG!

The BRUW filter works exclusively with wide mouth, quart sized jars. We're working on other sizes, but for now that's all we offer.

Make sure your coffee is ground coarse, more than you would for a french press. This not only makes sure the coffee filters properly, but it's necessary for the best extraction.


It's not filtering! What do I do?

Don't panic, you can always get it to filter.


The BRUW filter comes with a straw, if the straw is not attached the coffee will not filter. This is because a vacuum is created at the top of the jar and won't let the coffee drip down. The straw preevents this from happening, and lets the coffee filter perfectly. Make sure you're using this.


If you're doing everything right and it's still not filtering, flip the whole assembly over again and re-flip it to try and get it to filter. Shaking or swirling the system also helps get it to filter. Be patient! You're filtering coffee, it's normal if it takes a few minutes.


It's also normal for a large portion of the coffee to filter quickly, and the remaining to take a bit longer.


We hope this helped! And don't forget, you can always get in touch with us here