Turin DF64V Grinder - Page 13

#121: Post by **Yakoh** » September 19th, 2023, 5:04 am

Selvy wrote:Sorry it took me so long to reply! Had a holiday trip and took a while getting back to my espresso machine (BBP) due to buyer's remorse with its built-in grinder etc...

I've been using the DF64V to make french press and recently a few espresso shots. So far I've been very impressed with its consistency. Adjusting the grinder's dial by 1 had a consistent change in the shot time, and for this medium-roast coffee I found a sweet spot at setting 14 (18 g in, 36 g out, 28 s, using a paper filter and puck screen). I will try more challenging light roasts later.

As for french press, I've been experimenting with light roasts using medium'ish grinds between 45-60, and got the tastiest results at the lower end of that. I used a simpler version of Hoffmann's method.

One small negative is the grinder sometimes, at the lowest RPMs, made a whiny noise that sounded like something was getting stuck in the works. It comes and goes as coffee passes through the grinder, and mostly just happens at the lowest RPMs. I haven't yet figured out what's causing it. But it's not very disturbing and to my knowledge doesn't impact the performance.

Let me know if there's anything specific you'd be interested in knowing. Overall, I love this small, quiet, consistent grinder. And yes, it's the EU version ("G-IOTA VS"). I don't know for sure if it has the new board but I would assume so. At least I haven't had stalling at real-world parameters.

Thank you so much for sharing your experience with us. I'm so glad to hear you're happy with your new grinder. It looks like an excellent option for those of us looking for a single dose electric grinder. I'm curious as to how well those DLC burrs perform and where they make a difference compared to DF64 stock burrs (especially the ones that comes with the DF64 Gen 2, which apparently are identical in geometry to the DLC onesp without the coating).

#122: Post by **LObin** » September 19th, 2023, 7:31 am

The non-coated version should produce very similar results to the DLCs.
Not many people have tried both the Gen2 and the 64V except a few YouTube influencers maybe.
If I recall, The Coffee Chronicler said that although the uncoated burrs were very close, he preferred the DLCs, but I could be wrong.

Btw, I'm pretty certain the noise Selvy is hearing at 600rpm is caused by coffee grinds taking more time to exit the burr chamber and likely going through the burr teeth.

It's honestly quite an outstanding little grinder. From the burr set to the magnetic chute, Turin nailed just about everything on this grinder.
The dosing cup could be better but it doesn't bother me. I'm actually a fan of that little wooden pedestal since it allows the user to remove and replace the dosing cup without chipping paint off the chute, body or fork, unlike other Turin grinders.

September 21st, 2023, 5:48 am

Yes, The Coffee Chronicler said he gets better results from the DF64V with DLC burrs (for both drip and espresso) than he does from the DF64 Gen 2 with stock burrs, even though according to him geometry is identical, so the only real difference (apart from variable RPM, of course) is the DLC coating. He also said the DLC burrs are not far from SSP Cast, so they must perform very well I guess.

#124: Post by **DaveC** » September 21st, 2023, 7:00 am

Yakoh wrote: Yes, The Coffee Chronicler said he gets better results from the DF64V with DLC burrs (for both drip and espresso) than he does from the DF64 Gen 2 with stock burrs, even though according to him geometry is identical, so the only real difference (apart from variable RPM, of course) is the DLC coating.

If this is the case I would be very sceptical of any conclusions reached. I would be surprised if anyone to be able to taste any difference in blind tasting between burrs of identical geometry, with and without a surface treatment/coating (I can't). Assuming both sets have had 2 or 3 kg through them first.

#125: Post by **malling** » September 21st, 2023, 7:46 am

I know other manufacturers said there no psd difference caused by coating so I'm sceptical, I also never tasted a difference on coating. The only rational is one cause more retention/static, bigger/smaller exchange or is better/worse aligned this could explain it otherwise things can also be just simply due to brew inconsistency.

If you repeat 10x I would anticipate that you remove the possibility of it being caused by this.

#126: Post by **Frankie4** » September 21st, 2023, 5:16 pm

In my experience I have noticed a difference in coatings as well as a difference between steel and coated burrs. This was confirmed in the cup as well as with differences in TDS numbers.

Alternative Brewing have a good video on their youtube channel in regards to burrs and the difference between them.

#127: Post by **malling** » September 21st, 2023, 5:25 pm

Frankie4 wrote:In my experience I have noticed a difference in coatings as well as a difference between steel and coated burrs. This was confirmed in the cup as well as with differences in TDS numbers.

Alternative Brewing have a good video on their youtube channel in regards to burrs and the difference between them.

video

Did you do repeat it 5-10x, do triangular etc.

Because I way too often see not rigid enough testing just as the video above.

There no PSD testing that say a coating dos anything, the difference your most likely experience is how long the burrs been broken in/seasoned, retention/static/exchange or end user variance.

Brew same coffee 3 times and you might notice that it actually varies in extraction it's never 100% the same...

Hence why a traditional cupping should be used as it's the most reliable

September 21st, 2023, 11:47 pm

My testing was done with 5 shots of coffee from each different burr set and yes whilst there was differences within each shot of a particular burr the differences were generally minor. This was evident by the TDS numbers as well. However the difference between burrs was generally wider both in flavour and in TDS. My least favourite and most favourite burr sets where very different flavour wise (and yes I know that is something that is subjective) however TDS numbers were very similar and almost identical.

My views on this subject are based off my experiences as I am in the fortunate position where I can do this kind of testing relatively easily.

#129: Post by **washed** » September 22nd, 2023, 12:11 pm

Someone asked the AB guy if the DLC was closer to GG or HU and he said closer to GG, as they are easier to dial in with a wider sweet spot.

I've been making some really delicious iced V60s with the DLCs around 50 grind setting @ 800 RPM. I had my first stall at 600rpm with a super dense light roast even though I hot started, so I'm making 800 my minimum just to prevent that. Not really an issue for me as 800-1800 is still a nice range for me.

I'm happy with these burrs so far. Tasty espresso and pour overs, nice work flow, great looks. Very happy.

#130: Post by **Selvy** » September 25th, 2023, 8:58 am

I know as coffee enthusiasts we all care about flavor foremost, but (usually tiny) differences like burr coating IMO pale in comparison to QoL things like size, ease of use, and especially noise level of grinder. I hated the loud thundering of my Barista Pro grinder and love that the 64V is nearly silent when spinning (only sound is from the beans being crushed). It's small and neat and looks positively dainty next to my BBP.

Also don't forget the namesake feature of this brushless motor, Variable speed. I love being able to use 600 RPM for french press and 1100 RPM for espresso.

These features, not the burr coating, are probably what you should consider when deliberating whether the V is worth the extra money over the incoming Gen 2. But I think they both reside in the optimal point of price/perf that comes before greatly diminishing returns. So, you won't regret either.