As per my title, this little bellow really pushes out the last grains of coffee out of my Niche. And look wise, it blends well with the grinder! Good purchase.

It’s amazing. Easy to install and the bellows is much needed! A little pricey but it’s high quality.

Does what it’s supposed to for a great price too, I am so glad I found this for my Niche Duo. A superb addition!

Easy install & works like a charm.

It really performs as described.
The only criticism I have is that I wish the top lip where the lid goes was a bit more hard. Otherwise it’s fantastic!

This is the second generation of INTROVERT's bellows for the Baratza grinder using molded silicon in place of flexible 3D printing material. The first generation worked well however the second generation is even better! Easier to pump, easier to wash, and puffs the last few grounds through the grinding assembly neatly into the container. Highly recommended.

It works well, better than the original 3D printed plastic one and looks nicer too. Pretty happy with it so far!

Perfect

I've been looking for a Silicone Bellows for my Niche Zero for a while. None of them "hit the sweet spot"... until now. The one made by INTROVERT is the best on the market: the fit is great, the price is right, and the service is excellent!
Thank you!

Works great with the Niche and has stopped me from having to bang on my machine to make sure everything is coming out.

The best of product.

Fit and finish very good.
Works very well!
Definitely recommend this bellow who uses Niche Zero or Duo.

I have a Vario W+(purchased 2024), grinding medium roast for pour over. The hopper feeds all beans and no beans popcorn out of the hopper(20g dose). When using the stock hopper for single dose, a few beans would always hang up on the bottom lip of the hopper. I would then have to brush them down, while grinding.

The bellows is a perfect fit and clears the grinder with two or three puffs. I was retaining .5 to 1.0 grams before using the bellows. I think the item description of 0 to 0.2 grams of retention using the bellows is accurate.

Referencing the photos on the website item page. My hopper is different, having the printing seam lining up with the index mark/narrow lug. Index mark aligns with where the shutoff knob/lever is on the stock hopper. The photo with the hopper filled with beans on a scale is weird. On a Vario, just plan on leaving the hopper installed.

Looks and works great! Quick delivery too. Highly recommend.

The latest, silicone release of the INTROVERT bellows for the Breville Sage grinder is a big improvement on the previous 3D-printed version. The old-design bellows was already a great addition to the grinder, easily attaching to the hopper and significantly reducing retained grounds and the annoying last few dribbles after you grind. But the material from the 3D printed version was a bit stiff and it looked and felt less than professional. The silicone version blends seamlessly with the design of the grinder so that you'd never know it didn't come stock. I also no longer worry about wearing the material out with excessive use. The silicone has very smooth action and takes a very light touch, so there's no more splattering grounds all over the place. Its a really clever addition to the grinder and I'm very happy I upgraded to it.