Do you mean for priming sugar? Or as the actual base of your beer?? Grain is the major component of beer (or malt extract). To use honey for example wouldn't even be a beer, it would be a mead, or grape juice would be a wine. It wouldn't even be possible to make a stout from light liquid malt...
Pretty much what he said :-) Personally I have a dual filter and go down to 1 micron because its the same amount of work for me to filter down to 1 micron as it is to 5. If your going clear, why not go completely clear. Ill add a link to my filter if your interested and that is allowed...
Any filtering down to 1 micron shouldn't cause any flavor issues (assuming its not a wheat beer or something where you want the yeast). Some people even go to .5 micron but anything below that is going to remove things that add to the flavor profile.
When you use a filter you generally...
I know its an old thread, but its been dug up a few times before. I was curious if anyone else stores the filters in vodka? Seems like you would have to store it in more vodka then the filter is worth?