Liquid below false bottom - grist ratio

[canyonbrewer]

Hi all...

I use a keg for my mash tun. It has a full width false bottom and a dip tube that goes below the FB.

This setup only leaves a cup or so of liquid behind, but there is probably 1-2 gallons of water space below the FB....will be measuring the exact volume tomorrow.

My question relates to grist ratio. If I would like a ratio if 1.25 qts /lb., how do I account for the 1-2 gallons below the FB?

Would I need to add the 1-2 gallons to my strike volume?

Thanks for you're help!!!

 

[Lucky_Chicken]

if you add that to your strike volume you change your ratio, but if you dont you may not have enough to cover your grain bed. This is a balance and you may have to adjust your ratio to get enough but not too much.

 

[Jewrican]

I have this same issue. i have 2 gallons under mine. I have only brewed once on it so far.... and it was earlier today.

I brewed a stout with 21 lbs of grain for a 5 gallon batch and added the 2 gallons to my strike water and i felt it was too much. It was like 1.6x lbs per quart (in total, not what is in contact with the grain) and it was just too watery ... i will need to get used to this and determine how much water to use in different situations.

I will take another few batches to figure out but it will be okay.

 

[Jewrican]

interesting post.. read the last post on this thread... and then look at his post count ha ha

https://www.homebrewtalk.com/f36/another-water-grist-ratio-question-114581/

 

[canyonbrewer]

Thanks.... I measured it. Its actually only 1 gallon below the FB.

I am going to start with 1.25 ratio plus 1 gallon for the first brew on this rig.