Mazzer robur doser or doserless?

by **menghazard** on Tue Aug 30, 2011 1:21 am

I absolutely can not decide. I really like the look of the doserless and i feel like i would really enjoy using doserless. However, I used rocky with doser before and I loved it. Life is difficult. Can anyone help me decide?
Thank you

by **jammin** on Tue Aug 30, 2011 2:00 am

For home use, the E model is a poor choice IMO. It wastes a lot of coffee and can't single dose. It's simply impractical many ways as home use doesn't parallel it's commercial/high volume design. For a large conical, the smart money is on a Compak K10. The grind is the same and is a better fit in the home physically and financially. You're on the right track though, you simply can't beat large conicals. It's hard to go back to flat burrs after you get spoiled.

cheers,
~j

by **JonR10** on Tue Aug 30, 2011 8:01 am

jammin wrote:For home use, the E model is a poor choice IMO.

I agree, doser Robur is better (for the home?) than Electronic. The E model will require a purge of 20g to 30g before each session....so if you start up and go to pull 2 doubles you will waste 30% of your coffee.

As pointed out also, other grinders have the same burr profile as the Robur and may be in a more "home friendly" package. Among these are the K10, Wega 6.8, Doge Conico, Macap M7K

by HB on Tue Aug 30, 2011 8:23 am

I agree with Jon and Jackson that the Robur isn't home friendly. Not surprising, it was designed for commercial cafes. Counter Culture Coffee has Robur E's in their espresso lab; I've used them most Fridays for the last couple years and they're even more home unfriendly than the doser model (though undoubtedly great for a cafe).

I had the Compak K10 and the Robur doser model side-by-side for a few years. Over time, I used the K10 more and more simply because I prefer its ergonomics; its grind quality is just as good as the Robur. While I agree with many that the Mazzer Robur is the standard bearer of conical grinders, it didn't work for me in a home environment and I recently sold it to Mike Zhu, owner of New World Cafe.

by **mitch236** on Tue Aug 30, 2011 8:28 am

I can't really give an honest opinion about the doser vs doserless but I have the E version and after removing the static screen, I only have to purge about 10 gm to get a clean shot. Correct me if I'm wrong, but isn't the grind path the same on both models? The big problem is the static screen and if you can remove it without developing bad static, I think the E version is easier. Also, I find I can set the timer to be within 0.5 gm accuracy so my shot to shot waste is very little. I almost never overgrind by more than 0.5 gm.

Single dosing on the E is challenging. I am currently working on a solution though and fully expect it to work!

The best of both worlds may be the special version sold by EPNW. They took a doser Robur and built a timer into it. That way, shot to shot waste is minimized while maintaining the doser which some claim can improve the end product although after removal of the screen, I doubt.

by **JonR10** on Tue Aug 30, 2011 12:22 pm

mitch236 wrote:Correct me if I'm wrong, but isn't the grind path the same on both models?

My point was about single dosing. If you grind all the beans you load straight through then nothing is left in the grind path, so it doesn't matter how long that path is.

The reason a doser grinder is preferred for home use (compared to a timed-dose grinder) is for single-dose grinding. If you're going to keep beans in the hopper then the E and doser models will have roughly equivalent purge (and waste)

by **Nuprin** on Tue Aug 30, 2011 2:12 pm

Having bought the Robur(Doser) and K10 from Dan for my shop, I would recommend the k10 for home use. I do LOVE the consistency and speed of the Robur and prefer the doser because it clumps less, but for your wallet and just as Dan mentioned, the K10 is a better choice for the home. Last time I checked, it was $3k for a Robur E, $2,200 for a Doser Robur, and around $1,400 for a Compak K10. The slower speed of the K10 will result in less waste in my opinion.

by **duke-one** on Wed Aug 31, 2011 2:30 pm

I have a Mahlkonig K-30 which, with a smaller hopper (either home made or bought) is a bit large but seems to work just fine at home. I brush out the path as far as can be from the spout with a tooth brush and then hit it with my vacuum for a second or two. I've weighed the grinds that the brush gets a few times and it is only 1½ grams. The first shot I grind after this routine comes out light by 2-3 grams so I assume the grind path is fairly clean.
KDM

by **johntaus** on Thu Sep 01, 2011 3:17 am

JonR10 wrote:I agree, doser Robur is better (for the home?) than Electronic. The E model will require a purge of 20g to 30g before each session....so if you start up and go to pull 2 doubles you will waste 30% of your coffee.

I have a Robur e for home and agree that there is a lot of ground coffee in that chute between the burrs and the doser or funnel in the e model. But how is the doser version better at grind retention? Don't understand that. Don't you have the same amount of ground retention as it is the same huge casing?

Single dosing with the Robur is a PITA! Versalab seems the only one to make sense for that.

Do you guys vacuum out whats in the channel each time you use it?

regards
JohnT

by **Bluecold** on Thu Sep 01, 2011 3:30 am

The -E has a grid, the non-E doesn't. So you can brush the tunnel in the non-E, but you can't brush out the tunnel in the -E.


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