Converting Grains to Malt Extract
For the first step, convert your base malt to extract. The base malt is easy to identify as it is the largest ingredient in the beer – typically 5-10 lbs of pale malt. For example, let’s look at an all-grain ale with 8 lbs of pale malt and 1 lb of crystal malt. The simplest base malt conversion is to just multiply the number of pounds of pale male by 0.75 to get the pounds of liquid extract. Therefore 8 pounds of pale malt becomes 6 pounds of liquid extract.
An equivalent conversion for dry extract is 0.6, so 8 pounds of pale malt becomes 4.8 pounds of dry malt.
When I am formulating any extract with grain recipes I ALWAYS base it around Extralight DME, then I get all my flavor and color complexity from my steeping (or partial mashing) grains. That way you get to use more and varied grains.
For example, let's say you are making an amber ale....If you based it around amber extract, you have very little room to get complexity from roasted or crystalized grains.....you run the risk of muddying the flavor and ending up too dark for your recipe.....
Staying with my Amber example...The Srm range for that style is SRM: 10 17 so if your base extract already puts you into 14 srms, you son't have much room to move around it....you may be able to sneak in a pound of crystal 30 let's say in it.
But if your Extralight DME has a color of 5 SRMs, you can really get into the recipe and play around with different combinations of grains until you get into the right color and Og range for the style.
And that will also get you a deeper, more complex flavor.
It's kind of like making model airplanes....remember the "snap together" types that you started out with? You had maybe 8 pieces; 2 body halves two front wings, 2 rear wings and maybe 2 pieces for a cockpit, or two pieces for landing gear...
But if you got one of those 500 piece b52 bomber kits....you had a much more complex final product.
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