Silicone Bellow Compatible with Fellow OPUS Coffee Grinder - Black

There's so little information to confirm this, so I wanted to give people reassurance that this bellow does indeed fit the Fellow Opus gen 2. The gen 2 doesn't need a bellow quite as badly as gen 1, but it's still nice to have one. Works well, fits well. The stock Opus 2 lid fits a little tightly in the bellow making it somewhat tricky to separate, but as others have noted, it will improve with time and use. I'm glad I spent a little more and chose this particular product, as the cheaper option on Amazon has received reports of "flimsiness". This bellow is rigid enough to function quite well.

Perfect fix for the retention when grinding espresso in it

If I knew what a pain in the kiester my fellow OPUS would be, I would not have bought it. Thankfully, this silicone bellow takes the opus grinder from super frustrating to somewhat tolerable. The OPUS has serious retention issues and the bellows helps with that alot. Good fit, and consistently blows out a pile of grounds after a grind. The travel on the bellows isn't the best, but enough to puff out a bunch of coffee.

I just received the bellows for my new OPUS grinder. I have used the OPUS grinder for two days and just tapped on the grinder to knock loose any retained coffee grounds. When I installed the bellows onto my grinder, I several times pushed down abruptly onto the bellows and released slowly so as not to draw any grounds back into the grinder. Very little grounds appeared in the catch bin. Before I ordered the OPUS, I read about retention problems and figured that the bellows would be a good idea. However, after two days of using the grinder, I find that tapping on the grinder knocks loose practically all grounds remaining in the grinder. I do know that the tapping helps because I tried tapping after emptying the catch bin, and more grounds appeared in the bin--not that much but enough that I would want it out. Just to be clear, using my knuckles I lightly to moderately tapped down on the top and the side, but nothing close to abusive to either the grinder or my knuckles. :-) So, it looks to me that there is no retention problem. Still, I'll hang on this bellows. Tomorrow, I'll try removing retained grounds in reverse order. First, I'll use the bellows with an empty catch bin, empty it, and then trying tapping on the grinder to see if tapping removes anything that the bellows didn't. Update: After grinding and emptying the bin, I used the bellows and dumped out the grounds that it pushed out. Then I tapped on the grinder to see if tapping would produce more grounds but it did not. So, it appears to me that the bellows and tapping both produce about the same results. There's one other thing you might want to try, though. Just start the grinder and run it for about 2 seconds. That produced some more grounds even after using the bellows and tapping. In fact, I did it twice and got some grounds. None on the third attempt. One final comment. One reviewer suggested manually stretching the top opening to make the lid easier to remove. That was a good suggestion. I did that and the lid now slides out easily. It does not affect the operation of the bellows. Update 2: I changed the grinder to a finer setting have been on that setting for a few weeks. I find that the bellows does seem to help more at that setting. I've gone back to using it. Upping review to 4 stars. I still lightly knock the grinder around while it's running and finish up with the bellows. That seems to clear out any retained grounds. So, the benefit from the bellows seems to depend on the grinder setting.

Seem to work great on the fellow grinder i myself had the same issue as others with it being hard to remove the lid so i just add the beans and just filp the lid over when using it no big deal great product

Wish that my Fellow grinder didn’t need this bellows. Yes - the bellows works as it should. But it is tall, be mindful of the increase in height of the grinder. Gripe: I have the Fellow Ode gen 2 & it is AMAZING w/static & retention. The Fellow grinder for this bellows is just plain awful in both areas. It is frustrating that Fellow didn’t put the anti-static into their Opis espresso grinder. Get this bellows if you want to clean out your Opus grinder.

I grind medium course coffee, setting 10 for a drip machine. My Opus was retaining about 2 grams of coffee. This required multiple smacks, hits and rocking the grinder back and forth. I really did not enjoy smacking my new coffee grinder around in order to get out what I put into it. A few pumps of this bellow now gives me everything I put into the grinder. I cannot vouch for expresso grind. It is much finer and packs a bit more. I recommend checking other reviews to see how well this product functions with finer grinds. I would also like to mention that this product matches the grinder and looks like it was intended to be a part of it.

It works well with my Fellow Opus Coffee grinder. Highly recommended.

Fits perfectly into the Fellow Opus machine. Couple pumps and I barely get any residues with pretty accurate bean weight. I would recommend this product for people having trouble with residue weight on Fellow Opus.

Muy buen producto, se resolvió el problema de retención de mi molino

Expensive for what it is, but completely eliminates grind retention on the Fellow Opus. Probably something like this should actually come with the grinder. I found it very easy to fit and to use straight away.

After reading the reviews of this item. I agree, it was stiff and difficult to get the lid on and off initially. Sticking with it and after a fews days it is now a snug fit that is easy to get on and off.

Works great for fellow opus! Helps with the retention problem this machine has.