Do carbon water filters filter out necessary minerals for brewing?

[BigHead33]

I have been using a GE carbon filter to filter out chlorine from my tap water. Around the same time I have been noticing my brews coming out with a light body and very little head retention. Can this be related? Thanks

 

[ajdelange]

No. Poor head retention is either the result of fat, grease or detergent on the glassware or improper handling of the protein rest during mashing.

 

[BigHead33]

Thanks. So the filter will not filter out any necessary calcium or sulfates?

 

[ArcLight]

If its Chlorine you want to remove -

Instead try 1/2 a Campden tablet. $3 for a bag of 100, means a cost of 1.5 cents for 10 gallons of water de-chlorinated

 

[ajdelange]

No, GAC won't effect the mineral content at all.