hi everyone, i hope you speak english.

has someone on here a La Scala Butterfly machine?
i need some advice, please.

indeed, a better idea is to introduce myself.
two days ago i've upgraded from a PID Rancilio Silvia to La Scala Butterfly, 2004 model, 1.5l boiler with 0.25l HX.
okay.
first shot was pretty good, joy and happiness.

now other shots for these 2 days, i don't know why, are complete disaster.
they are very sour/no crema. even i let machine warm for an hour.

i do the cooling flush. it takes ~17seconds and then the water stream stops fot 1-2 seconds at all, then it goes steady.
it is normal behavior? should i stop the flush at 17 seconds mark, when the water stops and then put the portafilter and get my extraction?

this is the machine

maki schreef:hi everyone, i hope you speak english.

has someone on here a La Scala Butterfly machine?
i need some advice, please

Hi Maki,

It's probably a good idea to introduce yourself first and to explain a little bit about the machine you want to ask a question about, including pictures and a description of the issue you have problems with.

done. should of thought about this. thanks!

Flushing for so long cools down the water and group resulting in a low temperature and acidic taste. Try flushing 3 seconds.

Why did you start flushing for 17 seconds because that's way too long for any machine?

maki schreef:now other shots for these 2 days, i don't know why, are complete disaster.
they are very sour/no crema. even i let machine warm for an hour.

The machine is not the only element that's important for a good taste & crema.

It all starts with the beans. You have not explained what beans you use, where from, what roaster, what roast date.

maki schreef:i do the cooling flush. it takes ~17seconds

Why do you do a "cooling flush"?

And if it's necessary, why such a long one?

What's the effect if you just do 2-3 seconds of 'cooling flush'?

maki schreef:and then the water stream stops fot 1-2 seconds at all, then it goes steady.

Yes that sounds normal if you flush that long. You probably flushed all pressure out of the HX, then next the pump tries to re-fill the HX and then cool reservoir water, somewhat warmed up, comes out.

maki schreef:should i stop the flush at 17 seconds mark, when the water stops and then put the portafilter and get my extraction?

Did you get a manual with the machine? Have you watched video clips about preparing espresso?

Where are you located? How did you find this Dutch forum?

There is also an English forum: Home-Barista http://www.home-barista.com

Erik82 schreef:Flushing for so long cools down the water and group resulting in a low temperature and acidic taste. Try flushing 3 seconds.

Why did you start flushing for 17 seconds because that's way too long for any machine?

that's my first HX and i was told to wait for the water to become pouring slowly. and this happends after that seconds with no water.

fransg schreef:

maki schreef:now other shots for these 2 days, i don't know why, are complete disaster.
they are very sour/no crema. even i let machine warm for an hour.

The machine is not the only element that's important for a good taste & crema.

It all starts with the beans. You have not explained what beans you use, where from, what roaster, what roast date.

i use fresh roasted beans from local roaster. same beans do excellent espresso on PID Silvia, or done once on this HX. so it can be done, theoretically.

fransg schreef:

maki schreef:i do the cooling flush. it takes ~17seconds

Why do you do a "cooling flush"?

And if it's necessary, why such a long one?

What's the effect if you just do 2-3 seconds of 'cooling flush'?

i was told to wait for the water to became pouring slowly. this happens after the water stops for a second on 17th second. will try post a video of the process.

fransg schreef:

maki schreef:and then the water stream stops fot 1-2 seconds at all, then it goes steady.

Yes that sounds normal if you flush that long. You probably flushed all pressure out of the HX, then next the pump tries to re-fill the HX and then cool reservoir water, somewhat warmed up, comes out.

now that you say that, it seems plausible...

fransg schreef:

maki schreef:should i stop the flush at 17 seconds mark, when the water stops and then put the portafilter and get my extraction?

Did you get a manual with the machine? Have you watched video clips about preparing espresso?

Where are you located? How did you find this Dutch forum?

There is also an English forum: Home-Barista http://www.home-barista.com

no manual. found one on internet, no word about cooling flushes there.
yes, but cant find a video helping me.
i'm from Moldova. on HB there's almost no info for this very model. on this forum La Scala Butterfly comes on google pretty often, i hope to find someone who has one.

maki schreef:i was told to wait for the water to became pouring slowly.

You may have misunderstood. If the water is too hot, then first there is a steamy splutter and after 2-4 seconds just the hot rain.

i will try make a video on how things are going and what i'm doing.
maybe, indeed (and i hope so) i got it all wrong and machine is working as it should.

Okay!