Oxygen
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Wort Oxygen
The Mad Fermentationist (Reddit) At the brewery we have one and it worked out to 25 min at 1.5 L/min to get 20 PPM in 310 gallons of beer (about the same either in-line or directly into the tank).
Nose Goblin Double IPA: I target 16 ppm of dissolved oxygen (DO). That takes about 3 liters per minute (LPM) on our system.
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