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I've just come up with the easiest and um ... workingest ... single dose mod for my e37s. All it involves is a chef's squeezy bottle and ... Actually, there is no 'and'. That's it.

Easy, cheap, reversible and it works amazingly well. It fits snugly into the hole so all of the force of the puff goes through the grind chamber and out of the dosing chute. There's no noticeable popcorning. 

The WORST result I've had so far is 0.2g retained.

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Aeropress | V60 | Sage Oracle | Ceado E37s | Motta ancillaries | Freshroast SR800

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I am fairly sure that the force of the air blows out all of the loose grounds that are there to be released. I've bashed it pretty hard to test that hypothesis without being showered in retained grinds. I have the SSC flap wide open. (I dose into a blind tumbler).

I don't believe that new grounds would displace more than a negligible amount from a previous grind.  

If there's anything retained from the first grind but not subsequently exchanged, that's fine with me. I'll deep clean it now and then as I would if I was using a hopper. 

The golden rule applies: it tastes great in the cup.

Now I can switch beans more often! Winning!

 

Edited by daveandmairi

Aeropress | V60 | Sage Oracle | Ceado E37s | Motta ancillaries | Freshroast SR800

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Did you try using these? https://www.amazon.co.uk/dp/B005X6QQ90/?coliid=I2QQ0HG0BNGJE1&colid=1CC5SI8Y1QYJB&ref_=lv_ov_lig_dp_it&th=1

I'd thought of just cutting the top and bottom off and using as bellows you can even dose through.

ACS Minima (Beta) with Bianca Paddle -- Reskinned Ceado E8, Niche Zero --- Gene Cafe CBR101 with Dimmer Mod and Bean Mass Probe

WATER CALCULATOR

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25 minutes ago, Rob1 said:

Did you try using these? https://www.amazon.co.uk/dp/B005X6QQ90/?coliid=I2QQ0HG0BNGJE1&colid=1CC5SI8Y1QYJB&ref_=lv_ov_lig_dp_it&th=1

I'd thought of just cutting the top and bottom off and using as bellows you can even dose through.

Looks good. The advantage of the bottle is that it's exactly 58mm wide, so creates a seal that directs the air through the grind chamber. Not sure if these would do the same. Could be worth a shot. 

Aeropress | V60 | Sage Oracle | Ceado E37s | Motta ancillaries | Freshroast SR800

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My solution is one of these, suitably modified with a sharp knife:

https://www.ebay.co.uk/itm/Steering-Rack-Boot-fits-PEUGEOT-306-1-4-Left-93-to-02-Gaiter-Bellow-406644-Febi/333725072808?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2648

It's not the best size, but I have an aluminium collar + adapter setup that works perfectly. What does matter is that you allow air to pass your hand when you release the bellows, otherwise ground coffee can be sucked back into the grinder.

One day I will see if I can find an alternative that fits better as one piece. The supplied measurements are all internal diameters, so finding something with a 58mm *external* diameter is quite hard.

Edited by Stox
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1 hour ago, Stox said:

It's not the best size...One day I will see if I can find an alternative that fits better as one piece...so finding something with a 58mm *external* diameter is quite hard.

How about something similar but "tapered" click me ...the hole is stated as 24-34mm; but that will be the hole shown at the bottom...as it tapers i'm guestimating that it maybe the 58mm your after if you cut it further up (i.e. middle section/upper section) and cut the bellows section to suit...worth a shot (pardon the pun).

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Recipe for success :- take 1 Sage machine, 1 flame, 5 litres of petrol and mix...add more petrol if required.

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