I in fact just started filtering my whites. I have a "plate type" filter system and I filter it with my vacuum pump rather than the pressure pump some sell. I can get different degrees of filtering pads and it does a terrific job. The draw back is you loose some wine. You soak the pads before filtering so the first bit of wine filtered is diluted a bit, then the pads are saturated with good wine when complete. so you loose what's left on the pads. It's a couple of ounces. What I do is a few batches of whites at the same time as the pads are good for more than 5 gallons, beginning with the lighter one first. Yes, you do get a very small blend but it's not noticeable. I think I read it also reduces the "wine diamonds" that whites show. I still like to "cold stabilize" though.