I plan to fine my beer in the keg with gelatine. I read that there will be some trub that sinks to the bottom and will come out in the first few pints. Is this trubbie beer drinkable/representative of the rest of the keg?
I recommend fining with geletin in the secondary for a few days (at cold temps) and then transferring to the keg. Must less trub poured. As an example, maybe 1/4 to 1/2 of the glass when the keg is tapped. Dump it and then drink clear homebrew until the keg is empty.
It's "drinkable" but you're drinking the stuff you went through effort to remove with gelatin. I'd recommend pouring it out. It won't hurt you although some folks say drinking lots of yeast makes them a bit..eh..gassy.
The beer should clear up after the first few pints are poured off (2-4) and get clearer for a few days until it's nearly perfectly clear.
I tend to find that with care, you don't get this crud coming out as long as your tap is an inch off the bottom. There might be some in the tap the first time you pour any but I don't have issues otherwise. You don't want to be moving the keg!
It should be obvious if you are getting it, as the beer won't be clear. Maybe you drink that part yourself to get the keg 'ready for sharing' until it runs clear ;)
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