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Reddit: The short answer, save yourself the time and focus on extended crash times and a minimum of weekly yeast dumps to improve clarity. Also 30-60mL/bbl of Biofine won’t negatively impact head retention, I have over 200 batches worth of tracked data to prove this. Added 3 days before racking to the brite should get you glass every time if you’re dumping regularly during maturation and giving your beer adequate time in crashing.