I just finished two small batches .8 gallons and .6 gallons and i noticed on both of them my final gravity was lower than the brew calculator predicted.
Recipe as follows
Est og 1.057 (i was spot on)
Est FG 1.016( I had 1.006)
Boil vol- 1.2 gallons
Batch vol- .8 gallons
1 lb light DME...