rice hull percentage

[mrcceo]

@tschmidlin

@mrcceo

A longer braid is less likely to clog because of the increased surface area therefore less likely to cause a stuck sparge.

Yeah, in Denny’s experiment the limiting factor is the outlet hole, the braid is no real impediment at all if there’s just water in the mash tun.  For a mash though, bits of flour or wheat/oats from the grist can clog a braid depending on the hole size.  So you’d need to do the experiment with consistent grist and different length hoses to figure it out for sure, and then vary the grist with the hoses as well.

Hose length obviously does make a difference theoretically, but it might not make a difference in practical terms depending on your mash conditions.  It sounds like it makes no practical difference for Denny’s typical mashes.

+1

[denny]

@mrcceo

@tschmidlin

@mrcceo

A longer braid is less likely to clog because of the increased surface area therefore less likely to cause a stuck sparge.

Yeah, in Denny’s experiment the limiting factor is the outlet hole, the braid is no real impediment at all if there’s just water in the mash tun.  For a mash though, bits of flour or wheat/oats from the grist can clog a braid depending on the hole size.  So you’d need to do the experiment with consistent grist and different length hoses to figure it out for sure, and then vary the grist with the hoses as well.

Hose length obviously does make a difference theoretically, but it might not make a difference in practical terms depending on your mash conditions.  It sounds like it makes no practical difference for Denny’s typical mashes.

+1

Thanks for the discussion and your thoughts, guys.  When I was conducting my initial braid length tests years ago, it was in a real mash and that’s where I found the braid length made no difference for me.  But as Tom points out, YMMV.

[mrcceo]

You’re welcome Denny. 
Nothing like a little lively debate.

[1vertical]

Ok,
My $.02…I use enough hulls to cover the bottom of the cooler to the depth of the braid.  I wash the hulls with
the mash tun preheat water in the cooler because they are DIRTY for sure.  Uh sometimes I have slow runoff
even with this.  Braid is most of the length of the cooler (2/3) and 1/2 inch diameter.  My bulkhead may be the culprit.

[beertracker]

I typically use a “couple” of handfuls when using wheat or rye malt in excess of 50%. Approx. < 2-3%?  :-\