Originally Posted by mattfmoore
Boiling grain particulate for an hour or more can't be good.
If boiling a few grain particles is bad, then I guess decoction mashing must be terrible.
But of course neither is bad, and for the same reason: you only extract tannins from grain at high pH, and if you're doing things right both your mash and your wort are low pH.
In terms of clarity, everything drops out with the hot break and hops.
Vorlauf == waste of time.