Need help on mashing out

[chefmatt34]

I mash in an igloo cooler and have never mashed out before but now understand the benefits. How much 200 degree water is needed to bring 3 gallons of 152 degrees water up to 167? Thanks for anyone that has a formula.

 

[Arneba28]

search around a bit there is a calculator that I have found in the past that has this formula on it.

EDIT: http://www.tastybrew.com/calculators/infusion.html

 

[Beerthoven]

Here is an infusion calculator. The answer to your question depends on how much grain you have mixed in with that 3-gallons of water.

 

[k1v1116]

you need to tell us the total volume of water and the pounds of grain.
http://www.howtobrew.com/section3/chapter16-3.html
contains the equations to calculate both strike and infusion water temps and volumes.