Basically, as the title says, but here's the context for what I mean. Once my BDB reaches the set temperature, say 90 deg C, the ready lights always stay on no matter what change I make. This happens even when I flush the group head to get rid of the 90 deg C water (say when I'm lowering the temperature, where this step is really necessary). So how do I know when the machine has finished heating and reached the new temperature? Am I missing something basic? Do I need to flush a lot more water than, say, for about 10 seconds and wait for the ready lights to turn off (and then on again)?

kinda-niche wrote:Basically, as the title says, but here's the context for what I mean. Once my BDB reaches the set temperature, say 90 deg C, the ready lights always stay on no matter what change I make. This happens even when I flush the group head to get rid of the 90 deg C water (say when I'm lowering the temperature, where this step is really necessary). So how do I know when the machine has finished heating and reached the new temperature? Am I missing something basic? Do I need to flush a lot more water than, say, for about 10 seconds and wait for the ready lights to turn off (and then on again)?

Yeah I have similar experiences. As cmin mentioned it does adjust rather quickly. If I'm bumping the temperature up by the time I've prepped a shot it's plenty warm, if I'm dropping down more than a degree or two (F) I'll do a slightly longer flush just to give it some help.

If you flush a really long time it will start flashing again for the heatup, so it doesn't always stay in "ready" mode but as you've observed that takes a pretty large change, but I'd say make your temp adjustment, prep your shot and you'll be where you want to be.

Great, thank you, Chris and Nick. That's exactly what I was asking -- it seems that the temperature readjustment is rather quick on this machine (maybe not surprising given how quickly it heats up from room temperature) and I just was not expecting that kind of speed.

(**At some point, I will indeed measure the live temperature of flushes after I readjust parameters, but I have been too lazy to do that so far.)

You're welcome! I definitely had similar thoughts when I first got mine. It's definitely a bug advantage of the small brew boiler, large enough to be stable for a shot but small enough for quick adjustment.

I'll be curious to see your results when you eventually confirm the live temps!