Wort Oxygenation Chart

Wort SGTime
1.040 - 1.0501 min
1.050 - 1.0601.5 min
1.060 - 1.0702 min
1.070 and up2.5-3 min and once additionally
in 12-14 hours.

For starters oxygenate approximately 10 seconds once an hour during the first 4-8 hours of propagation.