Recirculate during mash?

[The Baron]

Hi Mash Monster I think the reason you are getting more temp stability is because the wort is bypassing the grain going down the pipe and to the heating element quicker and no doubt the temp probe is in the bottom of the dead space.
I am surprised the grain/flour did not block the pump especially if you turn it off at anytime during the mash.

 

[Mash Monster]

Hi Mash Monster I think the reason you are getting more temp stability is because the wort is bypassing the grain going down the pipe and to the heating element quicker and no doubt the temp probe is in the bottom of the dead space.
I am surprised the grain/flour did not block the pump especially if you turn it off at anytime during the mash.

I totally agree with you re the mash temp and the only reason why the pump didn’t block is because I use a Grainfather overflow filter

 

[Mash Monster]

Yes I have seen that video and think he is wrong. Brewtools who make their own system actually declare the overflow pipe as a failsafe in their systems and to avoid dry heating elements and grain in your wort which would happen if you let it full bore and flow down the pipe this on the Brewtools website.

I note that Brewtools now supply a laser cut overflow pipe filter

 

[Mash Monster]

I note that Brewtools now supply a laser cut overflow pipe filter

 

[The Baron]

I think the filter is to stop any grain going in if the level goes above the overflow pipe

 

[Mash Monster]

I think the filter is to stop any grain going in if the level goes above the overflow pipe

Yep I think you are correct but doesn’t the Brewtools unit which appears to be a far superior build quality (in my humble opinion ) have a Completely different recirculating system whereby the liquid is pumped up through the centre of the mash on a fixed pipe and the overflow pipe is offset to cope with overflow acting as a fail safe as you previously stated similar principle to the BZ but a much better solution

 

[The Baron]

You've told me something there if so. However as far as I am aware all the All in one systems where designed to work with the pipe as a overflow safety to protect the heating elements.
When you sparge to get the best rinsing of sugars you do not just dump all the water in it is more beneficial to have the sparge level at most 1 inch above the grain so it actually flows through not flooding it as it has been suggested which is what happens if you do what the video suggests. I know which method I will use.
If you do decide to do the video method then a filter is required to stop grain going into the dead space and potentially blocking the filter