Vladimir Kim
New Member
- Joined
- Jan 29, 2024
- Messages
- 3
- Reaction score
- 5
Hello. Relatively new to all-grain brewing. I have a Clawhammer 120V system and I typically brew two gallon batches. My issue is that I always have very wild swings in terms of OG and I can't figure out why. Today I brewed two batches with relatively similar grists of 2-row, oats, and carafoam. I have a mill at home that I use with a drill at low speeds and I crush twice with credit card sized gap. I use Brewfather for calculations and my pre-boil gravity is usually on target, as well as pH. My mash is at 152F for 60 minutes followed by mash out at 170F for 10 minutes. I measured pre-boil SG at the end of my mash and they were both on target at 1.051 and 1.055 (pH 5.4 for both). After a 60 minute boil, I chilled and transferred to fermentors. The first had a FG of 1.058 and the second of 1.060. Not sure why I'm not hitting the required SGs of 1.070 and 1.073. I use the same refractometer for the readings and my pH meter tells me that the samples are at ~60F. I even compared to a floating hydrometer and had same readings. Beers turn our great but I would like to get my numbers in line so that I can re-make these beers in the future with same results. Any advice appreciated, thanks.