I'm using this recipe for my first AG batch an really looking forward to it as hefes are among my favorites. Anyway, I'm having trouble figuring out mash/sparge volumes. I'm running a 10g cooler MLT w/RIMS tube/controller. I'm very pumped to finally brew on my new setup as it's taken me a long time and a lot of money 😉. I'm also liking for some pointers for my yeast starter. Any help would be appreciated.
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For mash and sparge water check this site out:
click here . I'm not familiar with RIMS so you're on your own there.
Some helpful tips for determining volumes:
1. typical mash thickness is 1.25 qts/lb. Decoction mashes are generally a bit thinner.
2. losses in your system are inevitable. Determining your evaporation rate when boiling is as simply as taking a volume measurement pre-boil and then post-boil. I use a simple wooden dowel with markings for 3-8 gallons.
3. scaling up your recipe slightly is never a bad idea, so long as your fermenter has enough volume to accommodate it. With my system, the appropriate volumes for a 5 gallon batch will very rarely give me a full five gallons (my evaporation rate is too high).
4. pre-heat your mash tun to reduce temperature losses.
5. take meticulous notes your first go around. Measure how much wort you lose to trub at the end of your boil and how much wort you lose to grain absorption or other factors in your mash tun. These figures are very helpful when using the site i listed above or other forms of brewing calculators.
As for the yeast starter:
100 grams light dme (pilsen) per liter of water. So, if you're making a 1.5 liter starter, you need 150 grams dme.
-Boil for ten minutes
-chill
-pitch your yeast
-cover loosely with sanitized foil
-put on stir plate or agitate (swirl) occasionally