Originally Posted by Nateo
The paint strainer bags I got at my Ace hardware are coarser than the cheesecloth I used to use. Be careful of the amount of draff you get into your boil kettle. Too fine of a crush will cause astringency.
I now just lauter in the bag, with the bag in my bottling bucket. It works fine because I can vorlauf that way.
if using a bag that isn't as course (Voile works great) you can crush it to almost flour consistency and not extract tannins which is what causes the astringent mouth feel. A course bag allows husk to get into the boil and that is what causes it to be astringent.