Room in Mash Tun?

[andymacintyre]

I have been doing 5 gall brewlengths with my hop and grape "10 gallon brewery".
Tomorrow I plan to try a 10gall recipe. They say the tun is capable of mashing 10kg of grain (I am going to try and get 11kg in). It is a 28l tun. Having weighed the grain out, it does fit in the tun with an inch or 2 spare room at the top. I am wondering if it is really going to fit in with my mash water in there as well - (say 22 litres for 11 kgs of grain). I have my doubts...!

 

[Muddydisco]

You might get away with 20ltr, and a volume of 27ltr, but 22 ltr will be 1.5ltr over the floor :lol:

Good luck :thumb:

 

[andymacintyre]

Thanks for that! - is there some rule of thumb for how much space the grain+water takes up?
I will go for 20 litres then and try and get my 11kg bill of grain in. Suspect that wil be quite a stiff mash as I usually do 2.5l:1kg.

I am very much looking forward to receiving my new 50l tun...! my new 50l tun..! :-)

 

[Dunfie]

Do you want to borrow my tun?

 

[andymacintyre]

Oh that would make life so much easier!!! Can I pick it up this evening?

 

[highwayman]

Dunfie wrote

Do you want to borrow my tun?

That's what this forum is all about :clap:

 

[ano]

Thanks for that! - is there some rule of thumb for how much space the grain+water takes up?

I came across one once, it reckoned you added 0.67 to the water:grain ratio and multiply that by the weight of your grain in kg to find the volume a given mash would take up, naturally not including space under a FB or manifold. I like to think of the 0.67 as the "absorption factor" of the grain but might be missing something.