I'm trying to decide whether to dry-hop (in a SS conical) or use a hopback, either during the initial transfer to conical or between the conical and keg. From this thread, I've read that dryhopping might best be performed *after* fermentation is complete, as the yeast may extract some of the hop oils. For that matter, any fining agents (plan on using either gelatin or filtration media, depending on the beer) might pull those oils out as well.
A few questions:
1 - is there a way to sanitize or sterilize the hopper/hopback and its contents before adding to the wort?
2 - is there really any difference between using a hopback vs dryhopping?
3 - IF I hop after the fermentation is complete (either after dumping my yeast and dumping the gelatin sludge, or using a hopback when transferring to keg) how do I remove the hop particulate without removing the oils?
Thanks for the help.