PRO-Feeder 3.0 - The New Slowfeeder with variable speed & feed rate adjustment, more consistent feeding and optional bellows
The Ultimate Coffee Slowfeeder just got an upgrade as of December 1st 2025!
We are proud to announce that we are upgrading our Slowfeeder to the new PRO-feeder 3.0 with a new design from the ground up!
Take control of your coffee grinding process with the Coffee Slowfeeder, designed to optimize grind consistency and unlock richer flavors. Whether you're preparing espresso or filter coffee, this precision-engineered tool ensures a steady and controlled bean feed rate, reducing grinder strain and improving particle uniformity.
Upgrade your grinding experience with the PRO-feeder 3.0 — where precision meets convenience for the perfect cup, every time.
The most unique aspect of our design is that you only need to purchase the Slowfeeder once. We will be offering adapters in the near future for more machines. You can then use the Slowfeeder on all your machines with these adapters instead of purchasing an entire unit again while offering speed and & feed rate adjustability to match any setup.
You don't have any time to slowfeed and don't want to change back to the original hopper? Don't worry! We've integrated a one-step solution for you already! Go back and forth quickly with the integrated feature.
The tool runs on 2 AAA batteries (not included to ensure international hassle-free shipping) making it versatile and will last up to 20 hours on a single charge.
We also offer the tool in All White to match your perfect setup.
Upon request, we also offer to create your own unique combination of colors. We do, however, only offer a combination of colors, that are shown in the pictures. No matter which color combination you choose, there are no additional costs involved!
Battery leakage: To prevent damage or hazards, replace all batteries at the same time and avoid mixing old and new batteries.
Correct battery installation: Always install batteries with the correct polarity (+ and -). Incorrect placement can cause malfunction or damage.
Battery disposal: Dispose of batteries in accordance with local regulations to protect the environment.
Do not short-circuit: Never short-circuit the batteries, as this can cause overheating or leakage.
No recharging non-rechargeable batteries: Do not attempt to recharge non-rechargeable batteries as this can lead to leaks or fire hazards.
Keep away from moisture: Do not expose the product to water or moisture to avoid electrical shorts, corrosion, or malfunction.
Overheating caution: Avoid extended use of the motor. Turn the device off when not in use and avoid running it for too long to prevent overheating.
Child supervision: If used by children, always provide adult supervision to prevent injury from moving parts or electrical components.
Avoid forcing the switch: Do not force the switch if it feels stuck, as this could damage the motor or the battery contacts.
Turn off after use: Always turn off the motor when not in use to conserve battery life and avoid overheating.
In case of battery leakage or rupture: If you notice any leakage or corrosion in the battery compartment, clean it carefully with a dry cloth and replace the batteries immediately.
Handling malfunction: Discontinue use if the product shows signs of malfunction, such as smoke, unusual sounds, or excessive heating.
Caution: Contains sharp needles – increased risk of injury!
Keep out of reach of children – risk of choking and injury from needles and magnets.
Swallowed magnets can cause severe internal injuries or life-threatening complications – seek medical attention immediately if ingested!
Do not store near electronic devices, credit cards, or medical implants (e.g., pacemakers) – strong magnetic fields may cause interference.
Do not forcibly separate needles and magnets – sudden contraction may cause injury.
PRO-Feeder 3.0 - The New Slowfeeder with variable speed & feed rate adjustment, more consistent feeding and optional bellows
Estimated ship date: Friday, November 6
3D Printed
Designed in Germany
24/7 Support
Made to Order
Ships from Germany
Ships in 7 Days
Please note: Depending on the destination country, your order may be subject to customs duties, import taxes, or other local fees.
For products shipped from Germany and outside the EU, these charges are the recipient's responsibility and are not included in the item price or shipping cost.
The Ultimate Coffee Slowfeeder just got an upgrade as of December 1st 2025!
We are proud to announce that we are upgrading our Slowfeeder to the new PRO-feeder 3.0 with a new design from the ground up!
Take control of your coffee grinding process with the Coffee Slowfeeder, designed to optimize grind consistency and unlock richer flavors. Whether you're preparing espresso or filter coffee, this precision-engineered tool ensures a steady and controlled bean feed rate, reducing grinder strain and improving particle uniformity.
Upgrade your grinding experience with the PRO-feeder 3.0 — where precision meets convenience for the perfect cup, every time.
The most unique aspect of our design is that you only need to purchase the Slowfeeder once. We will be offering adapters in the near future for more machines. You can then use the Slowfeeder on all your machines with these adapters instead of purchasing an entire unit again while offering speed and & feed rate adjustability to match any setup.
You don't have any time to slowfeed and don't want to change back to the original hopper? Don't worry! We've integrated a one-step solution for you already! Go back and forth quickly with the integrated feature.
The tool runs on 2 AAA batteries (not included to ensure international hassle-free shipping) making it versatile and will last up to 20 hours on a single charge.
We also offer the tool in All White to match your perfect setup.
Upon request, we also offer to create your own unique combination of colors. We do, however, only offer a combination of colors, that are shown in the pictures. No matter which color combination you choose, there are no additional costs involved!
Battery leakage: To prevent damage or hazards, replace all batteries at the same time and avoid mixing old and new batteries.
Correct battery installation: Always install batteries with the correct polarity (+ and -). Incorrect placement can cause malfunction or damage.
Battery disposal: Dispose of batteries in accordance with local regulations to protect the environment.
Do not short-circuit: Never short-circuit the batteries, as this can cause overheating or leakage.
No recharging non-rechargeable batteries: Do not attempt to recharge non-rechargeable batteries as this can lead to leaks or fire hazards.
Keep away from moisture: Do not expose the product to water or moisture to avoid electrical shorts, corrosion, or malfunction.
Overheating caution: Avoid extended use of the motor. Turn the device off when not in use and avoid running it for too long to prevent overheating.
Child supervision: If used by children, always provide adult supervision to prevent injury from moving parts or electrical components.
Avoid forcing the switch: Do not force the switch if it feels stuck, as this could damage the motor or the battery contacts.
Turn off after use: Always turn off the motor when not in use to conserve battery life and avoid overheating.
In case of battery leakage or rupture: If you notice any leakage or corrosion in the battery compartment, clean it carefully with a dry cloth and replace the batteries immediately.
Handling malfunction: Discontinue use if the product shows signs of malfunction, such as smoke, unusual sounds, or excessive heating.
Caution: Contains sharp needles – increased risk of injury!
Keep out of reach of children – risk of choking and injury from needles and magnets.
Swallowed magnets can cause severe internal injuries or life-threatening complications – seek medical attention immediately if ingested!
Do not store near electronic devices, credit cards, or medical implants (e.g., pacemakers) – strong magnetic fields may cause interference.
Do not forcibly separate needles and magnets – sudden contraction may cause injury.
Materials
The body of the Slowfeeder is printed with food-safe PLA, and retrieved from corn starch. All compartments are equipped with high-quality magnets to ensure easy access to the electric compartment or to change the feeding disc.
Packaging
Included are the following with each purchase:
The PRO-feeder 3.0 as seen in the pictures (3D printed) - variable options available
An adapter of your choice for your machine - if chosen
Optional bellows are possible
Batteries are NOT included to ensure hasslefree international shipping
Compatibility
The PRO-feeder 3.0 is designed to work with all of our current and upcoming adapters. We are constantly working on more grinders.
If your grinder is not listed, feel free to reach out to us directly for a possible discount.
Due to the electrical characteristics of the feeder, standard alkaline batteries are required. Lithium or rechargeable batteries are not supported and may result in inconsistent operation or stalling.
By purchasing this item, the buyer acknowledges and accepts these compatibility limitations, battery requirements, and return conditions.
Care Instructions
Do not open the device: Do not attempt to disassemble the product, as it may damage internal components or void the warranty.
Proper cleaning: Clean the device gently with a dry cloth. Avoid blocking vents or ventilation areas.
Inspect before use: Periodically inspect the battery compartment for signs of corrosion or leakage. Clean contacts if necessary.
Avoid extreme temperatures: Keep the product away from extreme temperatures, as this can affect battery performance and motor efficiency.
No direct sunlight exposure: Prolonged exposure to direct sunlight can damage the product.
Remove batteries for long-term storage: If the product will not be used for a long period, remove the batteries to prevent potential leakage or corrosion.
Free Shipping Threshold
This product ships from Germany, so it counts toward our $174.36 free-shipping threshold.
Products that ship domestically (from Germany, the US, Australia, or Canada, matching your delivery address) qualify for the lower $75.00 threshold. Products that ship internationally from Germany need the higher $174.36 threshold instead.
These are tracked separately, since domestically-shipped and Germany-shipped products ship in separate shipments even within the same order. Adding a product that ships from Germany won't raise the threshold on your domestically-shipped items, and vice versa — if your cart has both, you'll see two separate progress bars, one for each.
The Ultimate Coffee Slowfeeder just got an upgrade as of December 1st 2025!
We are proud to announce that we are upgrading our Slowfeeder to the new PRO-feeder 3.0 with a new design from the ground up!
Take control of your coffee grinding process with the Coffee Slowfeeder, designed to optimize grind consistency and unlock richer flavors. Whether you're preparing espresso or filter coffee, this precision-engineered tool ensures a steady and controlled bean feed rate, reducing grinder strain and improving particle uniformity.
Upgrade your grinding experience with the PRO-feeder 3.0 — where precision meets convenience for the perfect cup, every time.
The most unique aspect of our design is that you only need to purchase the Slowfeeder once. We will be offering adapters in the near future for more machines. You can then use the Slowfeeder on all your machines with these adapters instead of purchasing an entire unit again while offering speed and & feed rate adjustability to match any setup.
You don't have any time to slowfeed and don't want to change back to the original hopper? Don't worry! We've integrated a one-step solution for you already! Go back and forth quickly with the integrated feature.
The tool runs on 2 AAA batteries (not included to ensure international hassle-free shipping) making it versatile and will last up to 20 hours on a single charge.
We also offer the tool in All White to match your perfect setup.
Upon request, we also offer to create your own unique combination of colors. We do, however, only offer a combination of colors, that are shown in the pictures. No matter which color combination you choose, there are no additional costs involved!
Battery leakage: To prevent damage or hazards, replace all batteries at the same time and avoid mixing old and new batteries.
Correct battery installation: Always install batteries with the correct polarity (+ and -). Incorrect placement can cause malfunction or damage.
Battery disposal: Dispose of batteries in accordance with local regulations to protect the environment.
Do not short-circuit: Never short-circuit the batteries, as this can cause overheating or leakage.
No recharging non-rechargeable batteries: Do not attempt to recharge non-rechargeable batteries as this can lead to leaks or fire hazards.
Keep away from moisture: Do not expose the product to water or moisture to avoid electrical shorts, corrosion, or malfunction.
Overheating caution: Avoid extended use of the motor. Turn the device off when not in use and avoid running it for too long to prevent overheating.
Child supervision: If used by children, always provide adult supervision to prevent injury from moving parts or electrical components.
Avoid forcing the switch: Do not force the switch if it feels stuck, as this could damage the motor or the battery contacts.
Turn off after use: Always turn off the motor when not in use to conserve battery life and avoid overheating.
In case of battery leakage or rupture: If you notice any leakage or corrosion in the battery compartment, clean it carefully with a dry cloth and replace the batteries immediately.
Handling malfunction: Discontinue use if the product shows signs of malfunction, such as smoke, unusual sounds, or excessive heating.
Caution: Contains sharp needles – increased risk of injury!
Keep out of reach of children – risk of choking and injury from needles and magnets.
Swallowed magnets can cause severe internal injuries or life-threatening complications – seek medical attention immediately if ingested!
Do not store near electronic devices, credit cards, or medical implants (e.g., pacemakers) – strong magnetic fields may cause interference.
Do not forcibly separate needles and magnets – sudden contraction may cause injury.
“I was skeptical that this would work well, but it works so much better than expected. Exactly the same result in my shots as manually slow feeding the beans. Easily one of the best upgrades I’ve made to my coffee setup, it’s nice being able to prep other stuff while the grind is happening.”
“The PRO-Feeder 3.0 is exceptionally well designed and built, with a clean finish and excellent overall quality. The adjustable speed and feed-rate controls make it easy to fine-tune the bean delivery for the grinder, resulting in a noticeably smoother and more uniform feeding process.
In my experience, this has translated into better coffee distribution and a more controlled, consistent, and repeatable grinding workflow. It is a very well-engineered accessory and an excellent addition for anyone looking to improve precision and consistency in their coffee setup. Highly recommended!”
“This version of the slow feeder is really the best out there. I love how much consistency this has brought into my pour over routine and now I don’t have to worry about manually trickling beans into my grinder. My cups definitely taste cleaner and there’s a visible difference in grind size uniformity when I use the slow feeder. On top of that Mehrdad is awesome and super responsive to any questions or feedback. I’ve actually owned 2 earlier versions of the slow feeder as well and every iteration has gotten noticeably better. After receiving this version I can confidently say that it’s pretty much perfect. Highly recommend!”
“Passt wie angegossen auf WPM ZP-1. Next Level Espresso! Soooo lecker. Das beste ist das Mehrdad den Adapter extra für mich ins Sortiment genommen hat. Von der Anfrage bis zum fertigen Produkt ist kein Monat vergangen. Herausragende Kundenerfahrung! Weiter so!”
“Absolute game changer. I can't say enough good things about this slow feeder. I use the timemore sculptor 64s and it's a good grinder but underpowered and I usually manually slow feed the beans and it takes forever. Now I just dump the entire dose into the feeder at once and watch the magic happen. The rpm is adjustable so I can fine tune the speed at which the beans enter the grinding chamber. My workflow has sped up tremendously and the ground beans are fluffy and just perfect”
“The quality of the parts are shocking well made with thoughtful designs. Also, the installation instructions were easy to follow along, and the customer service was 100/10!!! Mehrdad had been extremely helpful and answered the numerous questions I had”
“Top product with fantastic grind quality and easy installation using the video tutorial.”
“Geniales Produkt. Super flexibel durch die unterschiedlichen Adapter und top gearbeitet. Must Have für jede Single-Dosing-Mühle.”
“Gute Ergänzung zur Kaffeemühle. Simple aber gut.”
“For the niche zero, easy to install and operate. However if the bean size is a bit big, it stuck in between and cannt fall into the burr. Have to open the chamber, get the bean out and reassemble.”
“Truly perfection in every sense. I went with FusedVisionsHQ for my GS3 + EG-1 Black setup, and the final result exceeded my expectations—it looks incredible.
Thank you!”
“The slowfeeder has transformed my workflow but more importantly it has also changed my recipe since it produces less fines, allowing me to grind a few clicks finer”
“V3 size allows for significant bigger brews allowing to go coarser on the grind size. The quality of the tritan looks like glass.”
“I’ve tried many slowfeeders already, all of which have suffered from stalling issues and I’m happy to say I finally found the right model for me. It drops in beans consistently, allows for speed adjustments and looks great - additionally it’s reliable and simply works. Great customer service as well. The fact I can switch to another grinder in the future without having to buy a new feeder is very innovative.”
“Excellent quality slow feeder for my DF64, this thing does not jam up like the previous slow feeder I had from a different company. The variable speed is nice and just overall a great item!”
“I used it for the first time today I own Mazzer Philos and had no problems (no RDT, I did read the description before I bought it, but wanted to try it anyway and support the creator. It’s also very well made and looks cool, thank you!”
“Works as described, improves quality and uniformity of the grind on Ode 2”
“I have both V1 and V2 of the Slowfeeder. My primary reason for purchasing the V3 was height to fit underneath the kitchen upper cabinet. The V3 is so much more than a reduction in height. An overall smaller package, more consistent feed rate and a view of when the feed is about to complete.”
“The seller was able to add my specific coffee grinder within the span of 2 weeks from inquiry which made the ordering super simple and direct. The system itself was also incredibly easy to put together and extremely well designed.”
“This is a well built slow feeder for the Fellow Ode Gen 1 or 2. Very high quality and the variable speed is perfect. Also replaces the hopper, easy to install with the factory screws. 5 star product and seller!”
“Works okay, but I ran into some clogging when dumping all the beans in at once-I have to feed them slowly to prevent beans from getting stuck. The silver knob feels a bit cheap too. Everything else feels premium except the knob. Would love to see a nicer knob and maybe a better impeller design in the next version. I attached a photo of how my clogs look. A bigger chamfer on the last funnel might help.”
“Super freundlich und zuvorkommender Verkäufer. Der Slowfeeder ist hochwertig und sauber verarbeitet und funktioniert mit meiner DF64 sehr gut. Ein Gamechanger! Es gab sogar ein extra zur Bestellung :)”
“Die neue Version ist absolut genial. Kein stalling, variable Geschwindigkeit (kann man ideal and die Mühle anpassen) und endlich die Möglichkeit bei der DF83V die Bedienelemente 360° drehen zu können.
Je nach Positionierung der Mühle kann man immer ideal den Drehregler erreichen.
Wertet die ohnehin schon sehr gute Mühle noch weiter auf und verbessert die Mahlgutkonstanz.
Über Mehrdad braucht man nicht viel sagen. Er hat immer ein offenes Ohr, arbeitet schneller als der Weihnachtsmann am 23.12. und ist einfach symphatisch.”
“Bester Slowfeeder auf dem Markt !”
“Best slowfeeder and so sturdy”
“Even better than expected. Fewer fines makes much better coffee. Slow feed allowed me to slow down the grinder (DF 64 Gen II) RPM reducing fines even more. This product really quiets the grinder. Eliminating the fines also keeps the grinder cleaner. Great product.”
“Slow feed —> less dust —> better cup!”
“The Feeder works as intended. No stalling, which is great as I've tried models from competitors before, which all have stalling problems. Customer service is amazin. Mehrdad was very helpful and replied to my questions within 24 hours.”
“This is my second Slow feeder, I dropped the first. A slowfeeder is a definite improvement on any grinder. The FV slowfeeder is well made with quality materials and close fit. It is modular, so one unit with different bases will accommodate various grinders.”
“The seller was quick to respond and resolve a minor issue with the product. The product works as expected. I tried different discs to adjust the speed for the beans to drop. I'm excited about this upgrade. You can also purchase different adapters to use the slow feeder with various grinders.”
“The slow feeder is awesome and I would highly recommend to anyone because it’s such an easy way to upgrade any grinder! It’s brought me so much consistency, better grind size distribution, better tasting cups, and the workflow feels so much better than manually slow feeding. Thank you for building such an awesome product and community Mehrdad!”
“Had some issues with the shipping that the seller was quick to help with. Thankfully the feeder arrived with no other issues. Build quality is amazing and i love the modular design. Highly recommend his products and love what hes doing for the coffee community!”
“This product not only works perfectly as a slow feeder, but it also completely eliminated the popcorning issue with my Sculptor 078. Highly recommended!”
“Upon ordering the slow feeder/adapters, I got a message to confirm my address. Shipped and received promptly, Has multiple sections that come apart, identify, and put back together, but intuitive. A 4 notch disc was in place, plus 3, 5, and 6 notch discs in the box. Requires a AAA battery; a snug fit. Silent on power up but I saw the disc rotating; slower than I expected but that's why it's called a slow feeder. My Zerno Z1 adapter fit snugly in place of Zerno's removable steel hopper. I put the beans in, turned on the Zerno then the feeder; everything worked as expected. The Lagom Casa adapter also fits and works well. Tall profile compared to my two small profile grinders. Well made, intuitive and simple to operate, does the job well.”
“Zerno Z1 adapter fits in place of the removable steel hopper. Lagom Casa adapter also fits snugly. Both operate well.”
“Very interesting product. Does exactly as described and can be adapted to many different grinders.”
“Fits perfectly and the integration with the grinder is seamless”
“It took me a few minutes to figure it out. First I had to ask my son if he could put the battery in. It took him a couple seconds, I felt silly once he showed me how. The magnets were a little tricky but once assembled it was great. I had change the feeder once to get the right feed rate. The only thing I could think of to improve it would be a an led light to tell when it was running. I could barely hear it even with my hearing aids in. It's quiet.”
“The slow feeder work perfectly and was easily to install.”
“Fantastic accessory. Makes the grinds nice and uniform, minimizing the excess fines. Well designed and well built, it functions as it should and is a pleasure to use. Add in the fantastic communication and service and this makes for a very happy purchase :-)”
“Excellent slow feeder with a great design (in my opinion). Fast delivery and communication from seller. Can only recommend!”
“The quality of the slow feeder is amazing, and im really happy with it. Hassan is so cooperative and responsive and shipped the product the very next day of placing an order. I am very happy with the functionality of the product, and I highly recommend it for anyone looking for a slow feeder for their grinder. Hassan is very passionate about amazing customer support and satisfaction, which makes the whole experience with the product worth exploring. Wishing my best to fused visions.”
“This slow feeder is a great addition to my Acaia Orbit grinder and provides some great modular flexibility with the different feed rate inserts and very satisfying magnetized section connections. The print quality of each piece is exceptional, and the integration of the adapter to my grinder funnel is very well thought out. Slow feeding is a great way to improve the consistency of your grinder’s performance and this piece effortlessly adds slow feeding to my coffee workflow. I’d highly recommend this!”
“Das Teil sieht natürlich ein wenig überdimensioniert aus auf meiner DF64V, aber tut was es soll - ich musste heute ganze 5 Stufen feiner mahlen.
Das Design gefällt mir sehr: Die Komponenten sind magnetisch verbunden und es werden verschiedene Zellenräder mitgeliefert. Innen sind auch kleine Noppen, die dafür sorgen, dass keine feuchten Bohnen kleben bleiben.
Auch die Verarbeitung ist toll. Der Knopf fühlt sich hochwertig an und optisch ziehe ich es trotz der Größe anderen Slow Feedern vor, die oft eher unfertig aussehen und wahrscheinlich auch nicht so viele Bohnen fassen.”
“Ich habe mir den Slowfeeder für meine Mahlkönig E65S GBW Mühle bestellt. Und was soll ich sagen: Dieses kleine Upgrade hat meine Kaffee-Routine komplett verändert! Die Montage war kinderleicht: Man nutzt einfach den unteren Teil des Original-Hoppers, befestigt den Slowfeeder mit den mitgelieferten Schrauben – fertig. Alles passt millimetergenau. Das Ganze wirkt hochwertig verarbeitet und integriert sich optisch super in das bestehende Setup der Mühle. Was mir direkt auffiel: Da die Bohnen jetzt deutlich gleichmäßiger und langsamer in die Mahlscheiben gelangen ist das Mahlergebnis viel konsistenter, was gerade neben der gewichtsbasierten Dosierung (Grind-by-Weight) die Leistung der Mühle auf ein neues Niveau hebt. Für mich ist der Slowfeeder eine der besten Investitionen, die ich für meine Barista-Ausrüstung gemacht habe!”
“Ich war mir anfangs nicht sicher, ob sich der Slow Feeder wirklich lohnt und habe ihn dann trotzdem bestellt, weil ich mit dem WDT Tool von diesem Anbieter gute Erfahrungen gemacht habe. Ich wurde nicht enttäuscht! Mit dem Slow Feeder kann ich deutlich feiner mahlen. Der Kaffee (sowohl Espresso als auch Filter) gewinnt deutlich an Klarheit und die Aromen kommen besser zur Geltung. Ich hatte Espresso-Shots die vorher zu bitter oder leicht erdig geschmeckt haben. Mit dem Slow Feeder ist das komplett weg. Ich hätte niemals gedacht, dass man noch so viel mehr Geschmack herausholen kann. Auch in der Blindverkostung merkt man den Unterschied sofort. Zudem passt er wirklich perfekt auf meine Lagom P64 und sieht auch noch schick aus!”