The Alpha step down basket is a high quality bullet design with a pattern of fine holes for extraction. The deep puck in a 49mm size is an alternative to achieve a shot that is similar to a 25gram does in a "20 gram basket. Dosing by depth is the way to achieve the best from the coffee. But, 25 grams is a lot of coffee. Thev49mm achieves this goal with 20-21g. Perfect for a 2.5/1 50g drink.

I am glad i ordered the alpha version of the step down. The results are incredible and so delicious. I use 16grams in and 32grams out, and the step-down basket is so forgiving with the grind size that delicious creamy espresso is out with 2 or 3 grind settings i tried. Amazing to receive all the accessories at no cost, thanks to Andrew for including that. Surprisingly, my order did not come with a dosing ring, but I ordered one from Amazon and have zero complaints with the step-down basket and the construction of the basket.

Thanks Andrew

If you’re a coffee enthusiast who loves experimenting, the Introvert 58 → 49 mm step-down basket is a great upgrade to explore. It keeps your 58 mm setup but gives you a deeper 49 mm puck, meaning more body, balance, and consistency with less channeling and fewer wasted shots.

Just check compatibility and be ready to adjust your grind and dose slightly (usually coarser in my case). Also the taste of my espressos have been on point, so definitely might elevate your espresso game.

Without this step down basket I might not have started doing Slowpresso shots which taste out of this world. Amazing with milk. Really enjoying this basket!

ok, updating review. easy 5stars.

conclusion first:
this was made with passion. im very happy with the product and result. worth every penny. HIGHLY RECOMMENDED.

the nitpicky;
so lets talk about product.
1. VERY well made. fits snug like a glove. print quality is very high. white color is very close.. dont feel the need to airbrushpaint it.
2. the important coffee. this fixes the 078s. really;
- fixes bean feed. they all go through.
- fixes consistent feed. - shot time variance tremendously reduced. this is key. i now pull up to 0.4 to 0.8g difference on same recipe. was avg above 4.0g difference per shot.
- clean workflow. can dump and forget. no fidgeting with covers.
- coffee grounds exit splatters less, more downward. hence cleaner counter. not sure how but i noticed this benefit.

i did taped/printed and modded some stuff myself, but those are nowhere near finetuned as this product.

gears: df64, df83, 1zpressoK, arco, mp64 ls64 bdb.
current: 078s ssp +introvertmod + ecm mechanika max.

for those who read my initial review;
had dome hiccups with shopping custom tax, but introvert helped promptly with immediate action on feedback. something rarely seen nowadays. Kudos for great team.
those who seen the previous review on ship/tax/custom issues should know it has been sorted. buy with confidence.

I purchased this hopper in hopes of improving the workflow and reducing the popcorning and I gotta say it does the job much better than expected. On top of that it also looks amazing and integrates super well into the design of the machine. Definitely a huge recommendation!

just what i wanted

Single dose hopper works great and bellows help significantly reduce retention. He was even able to print the product in white for me. Can’t recommend enough.

The grinder itself is pretty great for the price point, but it does have some slight retention. With the bellows, all that is taken care of!! You are able to get every last gram from your grinder! 100% worth getting 🙌🏻

I found out about this company through a YouTube comment, and I'm thankful that I did. The wider hopper and bellows are a welcomed addition to my coffee workflow—no more tapping the hopper with my palm to get the last bit of grinds out. Looks & functions great

I was super stoked to find that a product like this exists that allows me to upgrade my Macap Leo 55 grinder instead of having to sell it to buy a single dose grinder. This is a welcome addition for anyone trying to streamline their workflow, reduce waste and minimize retention. The funnel and bellow combo looks smart (see photo), and it’s much easier to work with than a full hopper.

These bellows fit the Niche Zero 1 perfectly and really work well. There is absolutely no retention after using them and they are a really great price. Delivery to the UK was really quit. I thoroughly recommend them

Excellent quality, great feeling

The bellows makes it so much easier to get rid of the retained ground coffee. In combination with the BeanGlide cover, I no longer have to poke beans out of the finger guard or bang the grinder to dislodge the grounds. Highly recommended if you don’t store extra beans in the hopper! Since I regularly switch between espresso and filter beans, I’ve been single-dosing for a long time. I had to cut down the hopper to fit in my space and Andrew was very helpful in deciding if that was a good idea.

캐나다의 wdt 툴에 진심인 제작자 분의 introvert 칠침봉! 벌써 12번째 칠침봉...😱 고급진 알루미늄 바디에 0.35mm 침 7개 평행구조. 대부분의 칠침봉들처럼 침 상단의 굵은 부분을 하단이나 상단에서 꽉 맞게 끼우는 것이 아닌, 바디 윗부분의 넓은 홀로 침을 떨궈주고 헤드를 잠궈주면 단단히 고정되는 방식입니다. 알루미늄 바디가 주름형이라 그립감이 아주 좋습니다. ^^ 스탠드는 하단에 고무가 있고 밀폐형이라 침이 외부에 노출되지 않아 주변에 떨어지는 커피가루가 거의 없어 깔끔!
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평행 구조의 침인데도 사선형 침 구조인 세컨드랩이나 놈코어처럼 솎기가 쉬우면서도 바깥쪽과 안쪽을 같은 길이의 침으로 wdt 가능합니다. 추출 양상은 0.3mm 침 9개가 사선형인 놈코어 칠침봉 대비 2~3초 지연되며 채널링 또한 훨씬 적은 편. 사선형 대비 바스켓 하단에서 상단으로 올라오면서 wdt하는 속도와 분배력이 대단히 뛰어납니다!
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에스프레소 추출 후 아메리카노와 카페라떼로 비교 시음 결과 전체적으로 놈코어 칠침봉 쪽과 구별하기 쉽지 않았어요. 아메리카노에서 산미톤과 밀도가 살짝 높게 느껴졌으나, 카페라떼에서는 거의 차이 없음.
💛
외부형 도징링과 사용시 바깥쪽과 안쪽 침의 길이가 다름에 따른 미세한 wdt 효율성을 높이기 위한 구매였는데 매우 만족스러운 칠침봉이네요. 유일한 단점은 배송비가 무료임에도 10만원이 넘는 가격.😱 물론 그에 맞는 내구성과 마감, 쾌적한 작업속도와 wdt 효율은 그를 상쇄하고도 남습니다. ^^