I can’t seem to get rid of unpleasant harshness and dryness
MuddyOne Maybe temperature swaying in my room is the issue, Can you elaborate on this advice please?
My understanding is that food, in general, deteriorates faster at higher temperatures. Coffee being no exception.
MuddyOne Assuming I’m buying 1kg bags, I should buy vacuum bags, divide 1kg to four portions( 250g roughly lasts me a week) then take that bag out night before opening and use it .
That’s what I do. If you are going to use it within the month, it might not be worthwhile freezing it. If you seal the bag, then you could keep in the fridge, or somewhere dark and cool, away from the direct heat of a radiator. 👍
I’m keeping my beans in such wardrobe it’s rather cooler there, even when I brew between coffees I keep my bags away from heater, I only hope that keeping the grinder like that by radiator is not damaging in any way, radiator is on now and I can’t feel my duo is any warmer.
When you suggested beans might be stalled , after 3-4 weeks is just alarming if I should change the way I store them, I probably use my 1kg beans within 1,5 month after purchase .
MuddyOne - look… I think you are jumping to conclusions. 😊. I don’t live in your house, so I don’t know. All I can see is a video and made a few comments based on what I could see.
I’ll say again…
Buy a smaller bag of Redbrick (because that’s what you have and is not working) and brew within one week from delivery. If it works (read: if you can extract 36g in 30s) then you know what your problem is (read: stale coffee). If nothing changes, then it’s something else. This is all I’m trying to tell you. One step at a time.
Yep vile just taste of grass
Have a look at that for your flash boiling, temps too high by the sounds of it, remember its just a number, if you are flash boiling something is wrong, try dropping your temp down to 90 and repeat, keep all other things the same change one variable at a time
Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -
Sorry I was giving an example of how I don’t like a certain bean, which the op may not like a certain bean, not that it’s part of the square mile roast hahah caused a right tangent
Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -
MediumRoastSteam I’ll get red brick once more then and report back in couple weeks, I will also get updated about machine I’m curious myself.
MuddyOne - unless someone has a better idea, the only time I see a shot taking ages to start and then pouring down half way through is with coffee that’s stale, or coffee that’s very finicky, light roasted. I don’t believe Redbrick is one of them.
I’m assuming you’ve tried the stock basket and the same thing happens?
MediumRoastSteam I tried stock today once and surprisingly I got a little bit more sweetness but I will try tomorrow again after adjusting grind setting .
Are there any baskets that are better than stock but not difficult as vst? Is it worth buying ims or something else?
Ims comp, rounded bottoms are easier than straight wall
Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -
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I’m focusing on results that I can see. Were you able to, dose 18g of coffee, get 36g out in 30 seconds?
MuddyOne The stock basket is slightly waisted - they are more forgiving and good to learn with. Always good to explore the limitations of a standard basket and to keep it around for comparisons when you get new beans that are tricky to dial in. Red brick may not be a blend you like. I’ve seen a lot of people mention that it and sweet shop are difficult to dial in and an acquired taste even when they are brewed “correctly”.
Your opening post does state there are some beans you’ve managed to get great shots from. It may be beneficial to share what those were, and to get recommendations from there.
MediumRoastSteam I need to pull more shots to adjust grind setting,different basket. I will record my next shots and post them here.
So these are the results, duo allows changing settings by half step, that’s what I do. First shot I didn’t record, but it took 22s to pull 38ml
Next shot with video I’m changing only half step, 27s
Third shot again only half step it took 38 s and machine was already choking as you can see.
Looks the same to me: takes ages to start, and then the flow speeds up. It’s not right. There’s nothing else for me to say here.
So beans are stale? Similar thing happens with other beans, I’ll order tomorrow new red brick , if I’m getting same thing with other beans then I should change the way I store them.
Unless it’s somehow machine fault.
That long time to start may be the culprit why puck gets saturated for too long and result in bitterness?
Change bean try again
Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -
MuddyOne So beans are stale?
I’ll answer with what I’ve already said:
MediumRoastSteam MuddyOne - unless someone has a better idea, the only time I see a shot taking ages to start and then pouring down half way through is with coffee that’s stale, or coffee that’s very finicky, light roasted. I don’t believe Redbrick is one of them.
MediumRoastSteam sorry, I was just confirming what you said earlier.
I will also order vacuum bags for coffee storage.
Are these the ones people use or do you recommend any other?
I personally wouldn’t worry about the coffee storage too much yet, you need to understand what the issue is to begin with. Coffee storage can affect things but I don’t think that dramatically especially if the beans are still relatively new. Fresh beans shouldn’t be going stale within a month.
That said, your issues have all the hallmarks of stale beans but perhaps there is another issue. As others have suggested, you need to look at one variable at a time.
MuddyOne Are these the ones people use or do you recommend any other?
One variable at the time. You don’t even know what the issue is yet. One bag of fresh beans (it doesn’t need to be square mile red brick, but as this is what you are using it makes sense to stick to it) and go from there. You want to achieve first drops between 4 and 7 seconds, total time in 30s. 18g in, 36g out.
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Things I’ve noticed this with aside from stale beans:
Some burrs also do this. If the percentage of fines is low, the shot will accelerate quickly as soon as the puck starts to erode.
Puck prep: distribution of fines through the puck affects how they migrate. A shot will run slower initially if all of the fines are at the bottom of the puck. The basket clogs and the flow accelerates as the fines exit. If the fines are higher in the puck. with some coffees, the puck resistance increases over time. Good distribution and a consistent method is key to dialing in and getting repeatable results with a given grinder and burr set.
If you can get good shots out of some beans and then these are pants I’m calling beans, that or user error
It’s not the tools at fault
Get something easy to use like Horsham
https://www.horshamcoffeeroaster.co.uk/products/workhorse?variant=2002678723
Traditional taste, easy to use, consistent too.
Did you look at the flash boil?
I have a feeling you’re not listening to what you are being told, which is what happens in threads like this. We go round in circles till you get pissed off with not getting the answer you want.
All the equipment you have is more than capable of making great coffee
May have missed it but what waters in the machine?
Sorry to be blunt but there’s been millions of threads like this.
Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -
MuddyOne given you are getting some good shots with certain coffee types, I think so also. It’s a shame you can’t recall the coffee types you do enjoy. Knowing some of that would help identify if there is a trend in your preferences.
What I shared above was just experience, for sake of broadening knowledge about what other factors can contribute to how flow rate accelerates.
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See below my totally unscientific method without purchasing devices to fit to your portafilter !!
What i will say after doing this just now, you must be fairly high if you are noticing steam.
See half way through where i get to around 102 degrees. Very little evidence of steam and pressure only around one bar or less.
Starting point with tape was to create flow restriction.
End of video shows checking calibration at 100 degrees in open boiling water.
Befor anyone says this shows the Evo to be reading low, please bear in mind im shifting more volume and flow than on a normal shot. May try later on a genuine shot just to see what im actually brewing at.
@MuddyOne where are you located, your welcome to borrow this meter if it could be any use what so ever.
Ade Smith. ACS Evo Leva v2. Kafatek Flat max 2, ssw 2024. Mazzer Philos, Craig Lyn HG-1 prime., WW key mk1.
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LMSC I was referring to a rapid acceleration after a very slow start. I have high-uniformity burr sets that do that when dialed in for traditional espresso.
The outfalls are larger than most espresso burrs, so these need to be 50 microns or less from burr touch to get into traditional espresso range. Ditting 804 machined burrs do this also.
Cuprajake I’m listening my friend, I’m awaiting response from the retailer to see what they can say about that overheating and excessive steam, there is only so much I can do at this point, so for now I’m trying to discuss other potential issues. I have been doing my research about flash boiling too.
People come back to this thread and post me further suggestions so I carry conversation, no need to get pissy :)
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Pl get a bag of Blackcat’s Chocolate Point. It is a nice coffee and easy to dial in as well. 😊
Edit:
I also recommend you keep a log of your coffee — roaster, coffee, temp, grind size, what worked, didn’t.
Thanks but I think il get myself such device for future it’s handy,I’m getting a lot of steam like from boiling kettle .
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MuddyOne - for reference on my coffee today. It was from Darkwoods - Crow Tree. Medium dark. Roasted 11 December - I’ve been drinking this over the past week. Seems to be a blend of American coffee (Peru, Bolivia, Colombia and Honduras)
Machine: Lelit Elizabeth (vibe pump, slower ramp up)
Grinder: Niche Duo, setting 7.
Basket: VST 20g
Dose: 19g
Pressure: 10 bar -> 9 bar (noble infusion)
At 8s, starts dripping. Shot finishes at 33s, 38g out.
I already ordered another bag of red brick as per other suggestions, I wonder, only wonder if adjusting off set to negative value would fix the overheating problem. I mean there is a reason why negative off set exists right?
Still I will hit b&q and screwfix tomorrow and see if I can wired thermometer before ordering online.