Potassium Bitartrate crystals, ah

Mike bottled his and Pam's 2009 Syrah today.  Hardly any sediments other than Potassium Bitartrates that fell out.  I couldn't remember their name or what causes them, so went back to Crowe (205-206, 267-268) and got the refresher course and how commercial wineries cold-stabilize their whites to deal with these salts and all that jazz.  Not a taste issue, just cosmetic.