BWT Bestcup Premium M Water Filter CartridgeBy BWT water+more
If you know for sure you love espresso, but aren't sure on the right machine style for you, take this quiz!
Learn everything you need to know about boiler types before assembling your espresso set-up.
Learn the art of pour over. The end result is balanced, complex, and—if you’re lucky—a meditative state.
Discover the nuances of coffee brewing and get the right brewer for you.
Get a grasp on grinders. Know their burr type, materials, and the features your machine needs to brew a consistent shot.
Learn about coffee grinders affect the taste of your coffee.
Start your journey into the wonderful world of specialty coffee and espresso with this diverse collection of beans.
Browse our extensive selection of gourmet coffee and espresso beans. Whether you’re looking for whole bean, pre-ground coffee, decaf, single-serve capsules or ESE Pods, we have it all.
For proper machine maintenance, we stock genuine parts and premium care products.
Don't know what part you need? Check our support wiki for part diagrams and guides to help troubleshoot issues.
Build the perfect coffee bar and make sure it stays that way with a state of the art water filtration system.
Choosing a quality tamper is often overlooked as an important consideration of brewing good espresso.
Peruse a collection of powerful super-automatic and semi-automatic machines designed for professional use.
The E92 offers an powerful, yet delicate, low-speed grinder for minimal heat transfer and all the tools a barista might need.
With over 1,000 videos, our channel has everything from espresso machine reviews, tech and maintenance guides, coffee recipes, and more!
We’ve taken our expert YouTube videos and carefully collected them into specific playlists for each machine.
The BWT Bestcup Premium M Water Filter is an in-tank water filter that connects to your machine’s water intake to produce delicious water that will not produce scale in your espresso machine. BWT uses a four step filtration system that removes unwanted odors, flavors, and more from your water, and features BWT's patented ion-exchanger with charged resin to bind calcium while releasing magnesium to improve flavor quality.
The BWT Bestcup Premium M filters out limescale and gypsum to eliminate scale buildup in your espresso machine when replaced regularly. The four layers of water filtration are outlined below:
1. Particle Pre-Filter - Separation of coarse particles such as sand and rust.
2. High Performance Ion-Exchanger - Removal of hardness, adjustment of the balance of minerals.
3. Active Charcoal Filter - Eliminates organic substances, chlorine, and foreign odors and flavors.
4. Particle Fine Filter - Separates fine particles and suspended matter.
Depending on the hardness of your water, the total capacity of your filter will vary.
The capacities below are approximations for a filter used for an espresso machine.
Depending on your water’s hardness levels, the BWT Bestcup Premium M Filter cartridge's approximate capacity is listed below:
A (<8°dTH/142ppm) - approximately 2,381 double shots* of espresso
B (8-14°dTH/142-250ppm) - approximately 1,429 double shots of espresso
C (>14°dTH/250ppm) - approximately 1,020 double shots of espresso
Please Note: Regardless of the total water volume run through the cartridge, BWT recommends replacing your filter after a maximum of 3 months of use.
Due to the nature of in-tank water filtration cartridges, we DO NOT RECOMMEND the BWT Bestcup filter system for use in rotary pump espresso machines, as the filter cartridge impedes water flow and places undue stress on the pump. Using this filter system in a rotary pump machine will void its warranty. Also, we DO NOT RECOMMEND this filter for use in Expobar machines as this filter will not fit in Expobar water reservoirs.
The Bestcup filter system requires a filter cartridge adapter to install in semi-automatic and prosumer espresso machines and is safe for use with all vibration pump espresso machines.
*A double shot is approximately 2 - 2.35 oz of water.
by Marc Buckman
Water Filter Compatibility
|Reservoir (Vibration Pump)|
Need help? Between our library of self-solving materials and our team of espresso experts, we're dedicated to making your espresso simple, efficient, and most importantly, fun!
Couldn’t find the answer that you were looking for? Our team of caffeinated experts are here to help.Visit Our Support Center
Interested in upgrading or replacing a part on your machine? Browse our selection and contact our expert team with any questions.Shop Parts
Do you want more information on products, unique experiments, and coffee tips? Our YouTube channel has all of the in-depth videos you’re looking for.Visit our Youtube Channel
Looking for hands-on reviews, recipe ideas, and tech tips? Check out our blog for articles on all that and more.Visit our Blogs
Share your thoughts, experiences, and picture perfect setups by submitting a review of your machine. Participate in our community of passionate coffee enthusiasts or simply be inspired by your espresso loving peers as you contemplate your next machine.
Sign up to receive Whole Latte Love emails and take advantage of our biggest sales of the year before anyone else, as well as receive email-exclusive coupons, content, and more.