About: http://webisa.webdatacommons.org/423005151

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	I have found a few places online including ebay, but 12.00 an ounce seems steep.I have never used it, but I think I recall that the recommended use is about 1 gram per 5 gallons.
http://www.w3.org/ns/prov#wasQuotedFrom	homebrewersassociation.org