Mazzer Luigi Super Jolly Doserless - Extremely Minimal Retention

[@claudiolevermag]

If you open the lid of the chute, you'll find a lot of stale ground sticker on the antistatic grid. Imho, what you have got out of the grinder is a mix of fresh and stale ground

[@TheCoffeeField]

claudio santoro if I’m not pulling shots back to back I simply grind a gram or so of fresh coffee to purge the stale ones. Honestly, I rather do that than buy a single dosing grinder (EG1 and Monolith) for thousands of dollars and have to single dose, even if I pull shots back to back. Also, I’m almost positive that 99% of people, including myself, won’t be able to identify the difference in the cup from a gram or so of stale coffee (in an 18 gram dose).

[@claudiolevermag]

The Coffee Field thank you

[@LillyRhiannon]

I'm excited to see this setup, because I have a rancilio silvia, and I'm about to order this exact espresso grinder! I chose this grinder because we have the same one at the cafe that I work at, and in the 3 years that I've worked there, we've never had a problem with. It is a tank.

[@TheCoffeeField]

Lilly Dee agreed

[@simpletech866]

I actually just bought a Rancilio myself. I’m having a difficult time using it but I’m enjoying the process of learning everything about it.

[@baswouwenaar8530]

Zero retention except for the approximately three grams of ground coffee from last time that remained in de shute. Well done 😃

[@wad6216]

There will be a fair amount of coffee retained behind the anti static screen on the chute exit holding coffee back. The only way to sort this out is to brush out the chute after every use and take off the anti static screen in the chute opening to make it easy to do. Then of course you get more static as the coffee does not have anything to force it back after being ejected from the burrs into the ground chute opening. So it retains coffee in the funnel sides and spout with static. I'm going to make a flap for mine out of light weight material but heavy enough to hit the coffee grinds as they are ejected to angle them into one direction and then fit some mesh into the funnel to help with clumping and static as it goes down. You are always going to have to brush out the old coffee retained in the chute in just about most of the grinders out there in order to have no retention. Or falling that waste a bit of coffee to start you grind every time in low output coffee making at home.

[@harryhalfmoon]

Vacuum the grinder from the top and from the chute, while it's running. Then do the test again. The Jolly is a nice grinder, but the retention is significant. You need to use a bellows or brush out the chute after each grind or you *will* get old grinds in you brew.

[@dalerbsr.5061]

Thanks, that was an awesome demo

[@n00baTr00pa]

You need to test retention with a Clean grinder. Clean as much coffee out of it as possible and weigh it, you will find there's more than a gram.

[@MedMed-hi1qu]

Is it good for a well-extracted espresso?

[@TheCoffeeField]

Ilhami Med absolutely

[@esu1988817]

This test is not legit! Just because you don't hear any grinding noise that doesn't mean the grinder is empty, there are lots of grounded coffee approximately 2-3 grams sitting in the machine waiting to be pushed out by the new grounds....I have the mazzer mini type 2, same burr, same controls, just a smaller motor and it does retain lots of grounded coffee!

[@TheBluesine]

excellent

[@sinetwo]

Effectively, the Luigi and the Super Jolly are the same machines? ...And do you know what SRL stands for?

[@siwiskate]

società a responsabilità limitata. Limited Liability Company in English

[@Dune87]

You haven't cleaned it! That's NOT how you test retention! There is around 15g of ground coffee left in the grinder which you just replaced with new coffee!

[@Ri2ek]

Have you clean it before ?

[@TheCoffeeField]

UpickyRizek no. I didn't since I got it.

[@Ri2ek]

Maybe they refere to ~3g retention after cleaning it. Where ground coffee fills all odd spaces inside... Maybe it would be good comparison between few days running and after cleaning.

[@diycentral]

Sorry for the late reply but I am just getting into this stuff. I agree that it has to be a measurement take after the very first grind since my Breville Smart Grinder Pro performance is very similar. I've only measured it once after a thorough cleaning so I don't know what the average is but the Breville retained 2.5g and then everything after is +/- 0.2g.