Using Oat Husks to stop stuck sparge

[The Baron]

Hi
Bought a 25k bag of irish malt from HBC which I have had before but it was milled much much finer than any other I have had from them before but they say that they have not changed their grinding settins? its like flour.
I then ordered a 25g of lager malt which is back to the grinds I have had from them before and is ok so thought I would order some Oat Husks to combat the previous stuck sparge. I then used 100g in a 4kg grain bill but this did not work at all the sparge was stuck and I had to stir it to get the water to flow through it which obviously just let all the flour through causing so much trub in the bottom of the boil kettle it would not run into the FV and took me well over a hour to get 22 litres through the bazooka filter.
Sorry for the long post but how much Oat Husks should I use as 100g was not enough to combat this floury grind
Help as this really spoilt my brew day and I now have 22 litres with over a inch of trub showing so it looks like syphoning off into a secondary after the first initial ferment

 

[BeerCat]

A certain company recently sold me a bag of flour. I went through over 3kg of oat husks finishing it off. 100g is not enough as you found out. Its also better to add them at the start. I found stirring them in once it was stuck was not always that helpful.

 

[The Baron]

yeah most people said a handful would be enough so weighed out in a 2 litre just 100g which lokked way way more than a handful lesson learnt. Would 500g per brew be enough Beercat or less?

 

[IainM]

Mill your own, you won't look back. I did a brew day today, 1mm for the barley, 0.65mm for the wheat and 0.4 for the naked oats. Perfect.

 

[Fil]

I cant recall why or where from, but the value of 10-20% of the productive grain bill is lodged in the back of my bonce. so with a 4kg grain bill 400-800g :) , tho that may refer to rice hulls?? I have no experience with them but those numbers are yelling at me after reading the thread.. Wish i could cite a source or reference tho.

So If 500g prove insufficient have one more bash with 800g before handing off the grain to an artisan baker or hen keeper