Brew Number 118

• Mangrove Jacks Gluten Free Pale Ale

Kit contained

• 1 x Bittered Sorghum Malt
• 1 x Citra 20g (dry hop)
• 1 x Northern Brewer 40g (dry hop)
• 1kg Dextrose
• 1 x Magrove Jacks US West Coast Yeast M44

Brought out to 24L in Fermzilla.

The yeast has an apparent attenuation of 81% If that is so the final gravity should be...

FG = (SG - 1000) * (1 - AA/100) + 1000 
   = ((1040 - 1000) * (1 - 80/100)) + 1000
   = 1007.2

Date	Measured SG	Temperature	Corrected SG	Brix	Notes
27/09/2020 16:00	1038	21.1	1038	11.0%	Should have been 23L but misread the graduations
03/10/2020 22:00					Added hops
09/10/2020 13:00					Cold crashed to 2C
11/10/2020 17:00	1006	8.6	1005	6%	Still very hazy and with hop particles
12/11/2020 21:00					Added chitosan, set CO2 to 13 PSI

Notes

• Yeast pitched at 20C.
• Temperature set at 20C.
• Used iSpindel3.
• Sorghum malt seems quite opaque and not as sweet tasting.
• Spunding valve set to 25 PSI (ale should have 2.3-2.6 volumes of CO2, used 2.45).
• ABV = 1.646 * RI - 2.703 * (145 - 145 / SG) - 1.794 = 6.1%
• Grafana plot

Appendix

• BrixConversion
• Refractometer calculator
• BrewCalculator
• Carbonation Calculator
• HydroCorrection
• ABV measurements

-- Main.darius - 08 Sep 2020