So I want to brew some all-grain recipes from "Brew Like a Monk." However, I am confused how to do so with their recipes as they do not give weights of the ingredients. Rather they give percentage of each ingredient and target OG and FG. Does this mean I have to have a program (ie promash) and plug the numbers in? Are there are any free web based calculators to do so (I have an apple and promash not compatible with)?
Would it work to enter the percents as weight (e.g, if it's 92% pilsner malt, enter 92 lbs), then use an OG correction tool to get the correct OG, which would scale the whole grist bill down. I think Beersmith can work like this.
Do you have a hard copy of How to Brew? He explains how to make these calculation on Pages 190-195. I was going to try and explain it but I realized that I don't have a complete grasp on it. Last thing I want to do is confuse someone with bad info.
You would have to plug it in the same way I use beersmith. Add in all the ingredients, then adjust the weight until it shows the correct (or close to it) percentage of each malt/adjunct. Very easy, and no math involved.