SSP MP Burrs Producing A Lot Of Fines

Grinders are one of the keys to exceptional espresso. Discuss them here.

#1: Post by Raglo »

I have the ode with SSP MP burr and am getting 3:45 - 4min brews with 15g doses and the bed looks quite muddy. The burrs are very well aligned and I'm grinding at 6 on the dial, so I'm not sure if this is just a seasoning issue? The brews have a lot of clarity but there's an underlying bitterness and some astringency. I've run about 1.75kg of a dark roast at a grind size of 7. I've attached an image of the bed below. Any help would be great.


#2: Post by iBrew »

A lot of the times fines can be an issue of the coffee bean and not the burrs. Try other beans from other roasters. I have coffee that my SSP MP puts out a noticeable bump in fines than with another coffee there's a lot fewer fines and I need to grind slightly finer.


#3: Post by iyayy »

that looks like my early cups with the mp.
i was grinding to look similar to my 1z K grind size, but ssp mp behaves different enough that i had to start back from scratch. it also never look as clean as 1z K, or italmill on the paper sidewalls.

maybe you can try coarser (reduce astringency/dry aftertaste, and shorter brew time) and lower temp (reduce bitterness)? generally my temps have been 2-3c degree lower than with 1z K.

you can also choose not to knock the last fines? im on df64 so i sometimes dont bellow out the fines, but at coarser grinds its only about 0.1-0.2g less anyway so i just dose 0.1g extra.


#4: Post by Jonk »

The underlying bitterness and astringency could also be due to the beans. I have the original version of those burrs (without the little flat bits that made it "multi-purpose") and mostly grind at the same setting. They are quite revealing to roast and bean defects, even if it's quite possible to get clarity as well at filter settings.

The amount of fines you can see on top of the bed and filter walls is not a good indicator for the total content in the slurry. I'd advise you to disregard visible fines and focus on flavor.

This is two brews using the same beans and grind, only different pouring pattern:

High agitation will bring fines to the top like on the left.


#5: Post by Alwayzbakin »

For what it's worth (because it may have been all in my head), for the first couple weeks after getting my ode with ssp I thought my cups tasted a bit muddled and saw a lot of fines compared to my previous hand grinder, and that was after seasoning with almost 2kg. After a couple weeks daily use though I do like the cups I get. Maybe I just was finding my way around the new settings or maybe I was just getting used to the new tastes, but your observation resonated with my first impressions

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#6: Post by Jeff »

There's some reasonable evidence to support that similar burrs' distribution changes over 10 kg.

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#7: Post by jjtow30 »

I've definitely noticed with my SSP MP burrs that there are more fines than I had anticipated. However comparing to similar grind sizes on a commandante I've found that it appears similar if not more uniform (perhaps expected given the flat vs conical burrs). Do your brews taste good despite the fines? As others have noted, greater amounts of agitation to your bed produce more turbulence which can displace fines adhered to the coffee. Overall a muddy bed isn't necessarily indicative that the coffee will taste bad/overextracted, it's more of a general guideline for understanding if you may want to move your grind size finer or coarser, but ultimately if the coffee tastes good its not important. I also think that the importance of certain rules of pourover (bed should look like wet sand, coffee bed should be perfectly flat, trying to meet exact drawdown times, etc.) may be more relevant for dialing in more entry to mid level grinders where fines are a significant issue that need to compensated for. When you start getting into more unimodal flat burr grinders I think that you start to break these rules and go more by the characteristics of the specific bean, processing method, and ultimately whatever you find makes a good cup.