Yet another good reason to use a real kettle. Stainless is a pour conductor of heat. Therefore there are lage temperature gradients in the SS. These gradients generate tremndous thermal stress. High temperatures at the "ring" can result in the chrome migrating out of solution w/ the nickel and the iron, making for a brittle material. Too bad John Isenhauer isn't around to tell us about the keg ring that he branded into his carpet with a converted keg full of wart. Boil was long over, but the rings was still hot enough to burn the carpet. Cheers, Jim ----- Forwarded message from Roger Deschner <rogerd(a)UIC.EDU> ----- Authentication-Results: smtp-relay.enet.umn.edu sender=CBS-HB(a)LISTSERV.UIC.EDU; sender-id=neutral; spf=neutral X-Authentication-Warning: smtp-relay.enet.umn.edu: Host proxy-1.cc.uic.edu [128.248.155.225] claimed to be proxy-1.priv.cc.uic.edu X-X-Sender: rogerd(a)tigger.cc.uic.edu X-UIC-Note: Local Origin X-Scanned-By: MIMEDefang 2.57 on 128.101.142.227 X-Scanned-By: MIMEDefang 2.56 on 128.248.155.26 Date: Thu, 10 May 2007 09:32:45 -0500 Reply-To: Roger Deschner <rogerd(a)UIC.EDU> From: Roger Deschner <rogerd(a)UIC.EDU> Subject: Safety and converted kegs (fwd) To: CBS-HB(a)LISTSERV.UIC.EDU Precedence: list X-Greylist: Recipient e-mail whitelisted, not delayed by milter-greylist-2.0.2 (smtp-relay.enet.umn.edu [128.101.142.227]); Thu, 10 May 2007 09:32:54 -0500 (CDT) X-Spam-Score: 0.479 () DNS_FROM_RFC_ABUSE Something potentially very dangerous happened on National Homebrew Day in Michigan. The kids around in the earlier photos makes this incident scarier. Be forewarned! --Roger ---------- Forwarded message ---------- From: Kennywoodbrew(a)aol.com X-Spam-Status: No, score=-5.45 required=5 tests=HTML_MESSAGE, NO_REAL_NAME,SPF_PASS,USER_IN_WHITELIST_TO autolearn=disabled version=3.1.8 To: rogerd(a)uic.edu Date: Thu, 10 May 2007 07:19:24 EDT Subject: Safety and converted kegs Reply-To: boss(a)bitsmail.com For those who use converted kegs as a boil kettle see this important modification to avoid possible injury.: _http://forum.northernbrewer.com/viewtopic.php?t=44238_ (http://forum.northernbrewer.com/viewtopic.php?t=44238) ************************************** See what's free at http://www.aol.com. ********************************* http://www.bossbeer.org http://www.computer-bits.com To subscribe or unsubscribe to this list send e-mail to CBILIST(a)BITSMAIL.COM with a subject of : JOIN BOSS or LEAVE BOSS To Post a message, send e-mail to BOSS(a)bitsmail.com Only subscribed users are allowed to post. ********************************* ----- End forwarded message ----- -- ------------------------------ * * Dr. James Ellingson, jellings(a)me.umn.edu * * University of Minnesota, tel: 651/645-0753 * * Great Lakes Brewing News, 1569 Laurel Ave., St. Paul, MN 55104 *