If you have one of our Clawhammer Supply digital controllers we highly recommend running the temperature offset before your first brew day.
#BEERSMITH GRAIN ABSORPTION UPDATE#
I think most people are losing more wort to the pile of hop/protein sludge than they realize. Grain absorption seems fine as beersmith (assuming you are using this software) estimates biab absorption to be around 0.5l/kg, you can adjust this value in BS if you can accurately work out where yours sits. After the equipment profile is imported into BeerSmith update the grain absorption rate. Hopefully Beersmith let's you adjust that per ounce of pellet or leaf hops or something like that? If you find this to be a hard thing to measure (and it is, kind of), you can measure all the other things and back into this number to fit the result.
((Yet again Grainfather offer a nice formula for calculating this.
![beersmith grain absorption beersmith grain absorption](https://smokingbottle.files.wordpress.com/2019/02/2018-hopnest-ipa-01-1.jpg)
you'll have to measure that in a real batch. The grain will absorb about 5L of water (1L per kg), so 10L+20L 30L final volume. Or better yet, use software or a spreadsheet that uses sensible parameters. You can then adjust Beersmith's percentage boiloff parameter to match the volume you measured. Do some math and see how that compares to the percentage beersmith is assuming. Then multipy by 4 to get a volume loss per hour. Measure what you're left with and subtract from 2 gallons. To roughly estimate, boil 2 gallons of water (at your normal vigor) for 15 minutes. Beersmith uses a percentage per hour? That's silly. Measure whatever ends up in your receiving vessel and subtract from 2 gallons. put two gallons of water in your empty tun, then drain by your normal method. Grain Absorption.you need to make a wort to measure this, but 0.9 gallons sound right on for 7.5 lbs of grain
![beersmith grain absorption beersmith grain absorption](https://is2-ssl.mzstatic.com/image/thumb/Purple118/v4/ae/06/92/ae069293-04eb-198b-8106-0dbfb1fa03c9/source/392x696bb.jpg)
Click to expand.You can measure every loss, in some cases without even making a wort.