Kopi Deva

Looks nice and tidy in there 👍 - sure you will be up and running shortly !

Cuprajake I was going to guess left, but you were right. I waited for confirmation… support is amazing, only 20 mins for a reply.

The white plastic behind the blue cable connector is supposed to be attached to the plastic zip tied near the left terminal which is a battery support, but in transit it obviously broke when mishandled. Makes you realise what happens with the couriers.

Now to get on with seasoning the burrs..

Also discovered that cold starting doesnt work for espresso setting.. nothing came out and had to drop 2 notches. But with a hot start all good.

I’ve now put a kilo of beans though to season, Amazon £8/kg and can pour 16g beans in in one go and it grinds fine for espresso.

However the sheet with the grinder says touch point is 9. I think it’s starting to touch at 9.2.
I just ground at 9.5 and a 1:2.8 shot of light roast took just 33 seconds. I’m worried I’ve not got much room to go if I want to grind finer for longer shots or do long preinfusions.

Is this normal with flat burrs or a particular issue with the ND?

I could stall my minima quite happily with my Vario and can do on the Niche (I know it’s conical )

simonc However the sheet with the grinder says touch point is 9. I think it’s starting to touch at 9.2.
I just ground at 9.5 and a 1:2.8 shot of light roast took just 33 seconds. I’m worried I’ve not got much room to go if I want to grind finer for longer shots or do long preinfusions.

Is this normal with flat burrs or a particular issue with the ND?

I don’t know what the ND is, but it doesn’t sound as if things are right, the grinder should be able to grind fine enough to get a longer shot than that, even with light beans, especially if you are so close to touching?

DavecUK I meant KD Kopi Deva.

Yeah so far the experience with this has not been great. Customer service however is very good so confident I’ll get it sorted.

Have you had it in bits to clean after seasoning?
Those cheap beans are terrible
Are you weighing in and out?

simonc I just ground at 9.5 and a 1:2.8 shot of light roast took just 33 seconds.

Most of my light roast shots fall between 25s and 30s. This range is the sweet spot for me on my lever. I always go back to this time range after grinding finer aiming for 35s-40s shots. My typical ratio is 1:2.5.

Maybe ou should align the burrs even though that might not be the problem. Is really simple on the KD.

Cuprajake yes weigh in and out. In = Out to 0.1g.
Only thethe funnel off and very little In there

I meant to make sure the burrs were not caked in shit.

powderhorn Did you ever get this resolved? After 1.2kg I still can’t get it grind at espresso on a cold start, and then have to trickle the beans in a couple at a time to get it to grind 0.1-0.2 away from touch which gets me a 1:3 espresso with 16g in 35 seconds. No chance I could grind for a ristretto.

I am however getting minimal retention. After 3 shots it’s pretty perfectly clean inside. Wipers seem to be working

For the last 8 brews since yesterday I’m getting
20g out in 1min 20 @9.3
45g out in 1 min 10 @9.4
45g out in 35 seconds @9.5.
all for same 16g dose and 2 sprays at 1200rpm

Also 0.3G retention on some of these that came out on the next full dose, not even when I ground a few extra beans to make up to 16g.

Waiting to see what support say as impossible to dial in with that range.

What burrs are inside?
What basket are you using
Any papers or puck screens?

Burrs are 64mm Mazzer Super Jolly, specified by name on order so assume they have switched to the originals, not copies after they did the Kickstarter and Indiegogo campaigns. Price would now cover them.

Using 15mm VST basket, and a lot of WDT. Clearly not the easiest of baskets but I normally get a good result with the Niche.

LMSC

Touch point is 9.2-9.1 and yes, I agree that those are choking my machine, which is good, in that I can grind that fine without touching.
However having 0.1 range from choking to a standard ish time for a long shot is fairly useless. I couldnt pull a 1:2 in 35 seconds without trying to adjust in the tiniest of degrees between 9.4 and 9.5. Or do a long pre-infusion that doesnt result in a turbo shot.

Using the Niche I tend to pull a bit longer time given the pre infusion, normally around 40 seconds, and longer if I was doing manual pre infusion with the flow control (having ground a bit finer).

My point is that I dont have that flexibility here. If I want to go 3 seconds longer, on the Niche that was around 0.75 - 1. The amount of rotation and change in visible markings equates to approx 0.1-0.2 on the Kopi Deva where I go from 35 seconds to 70 seconds.
Imagine if a Niche going from 8 to 10 had a 70 second change in shot time?

So far it’s had 1,3kg through it (according to Bean Conqueror) and this is the 2nd bean I am trying to dial in. The first I ran out before I could get a drinkable shot out of it.

This is a light roast from Django’s Insight subscription so not the easier, and I might grab some more standard espresso beans tomorrow but I enjoy drinking the lighter roasts.

10-12 bags will be a few months and I think the return window might have passed at that point.

I love the machine, the quality is amazing. The quirks with the bean entry I can live with, annoying that when you RDT the beans stick to the metal scoop so you have to push them in rather than just tip, but not prepared to live with a grinder with such a tiny useable range for espresso.

simonc This is a light roast from Django’s Insight subscription so not the easier, and I might grab some more standard espresso beans tomorrow but I enjoy drinking the lighter roasts.

You should be able to dial in without worrying about a lack of flexibility; this is not just any standard beans but your preferred lighter roasts. It doesn’t help otherwise.

Hope the support can resolve it for you.