One-Hole Blind Basket

[pannyd]

I recently found what looks like a blind basket but it has a single hole in the dead centre (it is smaller in volume than a single shot)

anyone know what this is ?

[Reighlok]

Could it be a pod basket with a built in "crema enhancer"?

[cannonfodder]

Could it be a pod basket with a built in "crema enhancer"?

That is the first thing I thought of. Some kind of pressurized pod adapter.

[pannyd]

pod-adaptor ........sounds likely but are these usually polished smooth (like a blind basket) ?

[erics]

Well, additional questions for you would be:

Where did you "find" it and what is the approximate size of the "hole" ?

Somebody could have been trying to simulate shot flow/pressure but that hole size is very small - around 0.012" and not easily drilled in the average home environment.

Eric S.

[barry]

Somebody could have been trying to simulate shot flow/pressure but that hole size is very small - around 0.012" and not easily drilled in the average home environment.

i made one several years ago for just such a reason. i ended up soldering the hole closed again as the rig was pretty useless as a single coffee ground would plug it up.

[erics]

Barry - you is definitely correct but should you get the "fever" again, these guys will hep you out:

http://www.okcc.com/catsub_precision.htm

Eric S.

PS - you just don't know how to grind fine enough (grin)

[richl1]

i made one several years ago for just such a reason. i ended up soldering the hole closed again as the rig was pretty useless as a single coffee ground would plug it up.

I just made one by putting "JB Weld" epoxy on an extra single PF basket covering all but 1 or two holes. Just yesterday, it stopped working. I assume a stray coffee ground did just as you described.

I thought slowing down the flow would make it easier to flush the HX, but it did not have much effect.

Rich

[barry]

Barry - you is definitely correct but should you get the "fever" again, these guys will hep you out:

http://www.okcc.com/catsub_precision.htm

nah, i went the other way and found a filter to put before the orifice.


--barry "my contribution to the thermofilter"

[erics]

"Just yesterday, it stopped working. I assume a stray coffee ground did just as you described."

You really wanted to say "it ground to a halt." Didn't you? Didn't you?

The slow flow (normal double-shot flow rate) heats up Silvia's brewhead far better than a high flow flush. The water has a very low velocity - 1.25 feet per second or thereabouts IIRC and that does wonders for heat transfer. I'm monitoring a couple of temps on my Silvia and flowing the hot water through the orifice provided a means of getting the girl up to temp very fast in the AM.

I don't do it too much anymore because she is now on a timer and the "normal flush" works just fine for getting her ready for that first double-shot in the AM.

Eric S.