I have read up on it some, but it is driving me crazy. My beer is crystal clear in the bottle until I stick it in the fridge. then BLAM. I bottled a batch in clear bottles and until geting cold you can read through it.. after getting chilled down you cant see through a bottle it is so bad. I do full boil AG beers.. my wort chiller drops the temp FAST, AND I cold crash before bottling. I have tried gelatin and ( only tried it once) the batch had grunge floating in it that was NOT There before the gelatin addition. The ONLY thing I can think to do is extend my cold crash to a couple of weeks , but will that drop ALL of my yeast out? AND will it benefit he appearance of the beer. I KNOW it is really irrelevant but to me it is just another thing to learn.