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Originally posted by 4941494E4442200 link=1323740977/44#44 date=1336997995
aha, jump to 3:50 to see the difference between the thermoblock and thermocoil Looks much better, but harder to heat which is probably one reason for the higher rated element.
How does the 840 control pre-infusion? Does it pulse the pump like earlier models or control it softly like the 900?
The thermo-coil does take more energy to get to the target temp controlled by the PID, but the 1700W element gives better response to changes in temp. The thermo-coil has a larger thermal mass so it is less susceptible to temp swings when shot run slower or faster than ideal, the PID does the rest.
The pre-infusion is controlled in exactly the same way as the BES900, via some newly patented (applied for) technology. It does not uses pulses.
I was hoping this new machine would be a category killer like its older brother BCG800 and BES900 have and take Silvias position. I am surprised no CSer has bitten the bullet... :-?
aha, jump to 3:50 to see the difference between the thermoblock and thermocoil Looks much better, but harder to heat which is probably one reason for the higher rated element.
How does the 840 control pre-infusion? Does it pulse the pump like earlier models or control it softly like the 900?
Originally posted by 6C6179626760690E0 link=1323740977/40#40 date=1336478402
seatle coffee gear
Lookm at:
http://blog.seattlecoffeegear.com/2012/05/07/what-is-a-thermoblock
for the difference between the Breville boilers, thermoblocks and thermocoils.
Saw the infuser at havey Norman today. Anyone ?
Also seatle coffee gear put on a new video showing the thermocoil, appearently sent to them by breville.
Originally posted by 14253636293235352223500 link=1323740977/35#35 date=1330737973
Id be interested to know why the decision was made to go thermocoil and not single boiler? From my laymans perspective it would seem much more difficult to get good results from a thermocoil than from a boiler, even with a pid
These projects take at least 2 years from inception to market, even if you have the technical package somewhat resolved, which we did, as the BES860 uses similar but not the same package. But we didnt just strip the grinder from the 860, we added features from the BES900 to improve the users coffee expereince, like low pressure pre-infusion & dedicated hot water. Oh and one of the aims of this project was replacing a machine in the current line-up, which was a thermostat controlled thermo-block.
Id be interested to know why the decision was made to go thermocoil and not single boiler? From my laymans perspective it would seem much more difficult to get good results from a thermocoil than from a boiler, even with a pid.
Originally posted by 4C61756768696E67417446617465000 link=1323740977/33#33 date=1330307613
So, Phil, Just the one question from me.
Is there any way to change the temp/preinfusion time/preinfusion pressure with this new bit of kit (like the BES900) or is it set at the factory?
Having the ability to adjust on the fly would be a delightful thing, Even for a consumer level machine (BES900 is prosumer in my opinion)
You cant adjust temp, its set at the factory, but the PI duration will be able to be controlled albeit it in a manual sort of a way. Press & hold either the 1 cup or 2 cup buttons & PI will run for as long as the button is held, when released, full pump pressure is applied.
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