I have a robobrew and i'm trying to figure out how much water i need to boil for my mash, and the temperature etc. I've been looking at this tool: https://www.brewersfriend.com/mash/ but i'm not sure what all the terms mean. What is first rest temperature? This is the recipe that I am using: https://www.ontariobeerkegs.com/v/vspfiles/assets/images/grainkit - obk chocolate milk stout.pdf My friend, who also has a robobrew told me that I should plug in 0.35 for the mash water/grain ratio based on his experience. So i guess my question is, is the first rest temperature the temp of the water when i start adding the grains? The recipe says I need to mash at 150F/65C. Is that the value? Sorry for being such a noob. Also, is this the right approach for calculating the right amount of strike water? I assume that my grains will absorb 1.5 gallon of water; 1 gallon will evaporate. This is the calc I have: + 4.5 g (for mash, per the calculator) - 1.5 g absorbed by grains (how do you calc this?) ----------------------- =3 g left in mash tun by the time sparging starts. If desired finished product is 5.25 gallons, i need to: add 2.25 g of sparge water to bring it up to 5.25 g. And then tack on another 1g for evaporation during the boil. So .. total water is 4.5 g mash + 3.25 g = 7.75 G Does that sound right? Thanks.