Nicknak said:
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ajohn my point was made for when changing from coarse to fine or fine to coarse ..I think it would make it easier ..
Also I have been using the sage for decaf for about eight months .. I was single dosing and would run the grinder until nothing was coming out , tap it shake it .. Measure 18 in for the next one and get 19 out .. This is after the grinder had been used for a while after cleaning . So I guess not accurate to 0.01 or what ever .. Also when you take the top burr out there is also coffee ground within the burr and a ring of compacted coffee in the path of where the new grinds must pass through which I believe will come out with the new ground ..
However it is a much maligned grinder which I think for the money does a reasonable job ..
Night night
I was just pointing out the problems with working the way you suggested not arguing with it as going back and forth from 50 to 3 etc will upset the grinder as it wont settle down.
@MWJB is into telepathic scale reading. I know what mine did and that's that as far as I am concerned.
Sage grinders compact a certain amount of grinds in the grind chamber. Some under the item that sweeps the grinds out and some around the rim of grind chamber. It needs to compact these grinds thoroughly before it has settled down as I refer to it and once it has they are best left there. For me it then behaved as I mentioned +/- 0.1g with all sorts of beans as I used the SGP for beans that I wanted to try. The error went over that when ever the setting was changed and often when the bean was changed as well but soon settled down again. What's left in is mostly permanent retention - a lot more than Niche but still not that much in terms of grams. When a the bean is changed there is some carry over but mostly on the first shot. Generally I couldn't find any taste change after that with one exception. Some beans flavoured with vanilla went through it. Those needed more but it's a very noticeable flavour in coffee and they were strongly flavoured. Horrible stuff but some one bought them. Xmas present so some went through the grinder = 40g to be precise.
One thing I have wondered about is if the bean that is compacted matters mainly down to what I was doing with the grinder on the BE - maintaining a dose to better than 0.2g via the timer. I had to clean it out when the grinder broke. One thing I noticed on that was that initially it looked like it needed a certain level of beans in the hopper. Turned out to be a coating of bean oil on the hopper so had to wash it. The SGP is more likely to have that sort of problem on the exit from the grind chamber as well. Grinds build up and it eventually chokes. It took about 30 weighed in shots of my usual bean to do that which is why I sold it. I mentioned the problem to the buyer. It would have just clumped more than usual with the hopper on. The BE grinder didn't clump over many kg of the same bean but from a different roaster. My new supplier may be worse in this respect but I'd be inclined to say not.
MWJB's comment. Well I have weighed in several kg's of beans into a mazzer mini since. New burrs so some clumping for a while but dose accuracy better than the SGP. Eventually I only checked the output from the grinder if the shot output changed. Turned out that the grind had. My son check weighed one dose shortly before I switched to the Niche and found the dose 0.1g short. I showed him how to get that out. He then switched to doing exactly what I do. What I do isn't as simple as this video shows on a Jolly but that can work fairly well anyway, people might just find they need to use the brush more and spin the grinder up more than once especially when puffing but other improvements can help as well.
Adding something like the flap shown may be a good idea on mazzers timer grinders. Static may been why my timer failed.
Eventually I removed a lot of that by discharging some of it through me into the body of the grinder.
Going back to the OP posts I found that when using the mini I could get 1g variation in shot size. I use a button that sets the time to 30 sec and weigh every shot I make. Eventually usually towards the end of a can of beans or the next can from the same batch the shot size would drift down. I'd leave things as they were and extend the shot time by up to 5 secs as I had a feeling that taste was changing. Then adjust the grinder to get it back to what it was. If one shot especially first one of the day drifted down I'd take no notice and wait and see what the next one did. Weather can play a part as well. I only bother doing this sort of thing when I am drinking my usual bean. The only reason I do it is the challenge. My other beans come in lots of 4oz and a fair amount gets used looking at variations. One recent lot came as a 1kg. Interesting taste and not fresh roasted. I weigh every dose of that one out of a different grinder with the hopper on set via a timer. Next change for my usual bean is different storage cans.
Only problem the mini is in the cupboard now and I'm use the Niche. I have had shots recently that have varied by 2g at 30sec. All have needed circa 33 sec to achieve what I usually go for.
One thing I would add is that other than the challenge there is no point in trying to get 1g of shot variation in 30 sec or what ever evert time as some variation wont make much if any difference. How much variation is acceptable depends on who is drinking it. All have the gear they use to make coffee and it's not exactly rocket science to find out. What can happen though if some one sticks to a particular bean long enough they'll get far more sensitive to taste variations. I still make significant changes to the one I have used for most of the time I have had an espresso machine just to see what happens.
Couple hours maybe to make this post - I wasn't at the keyboard for a lot of the time. Other things to do even eating lunch. However that may increase my typo rate.
John
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