The brand of the paraffin has nothing to do with the melting temperature, which depends on the paraffin polymers it contains. Each paraffin will have a melting point value in the package and will melt at that temperature. You can use a higher temperature also but not a lower one. René J.
--- On Wed, 8/3/11, Kolman, Kimberly D. <kim.kol...@va.gov> wrote: From: Kolman, Kimberly D. <kim.kol...@va.gov> Subject: [Histonet] paraffin temps To: histonet@lists.utsouthwestern.edu Date: Wednesday, August 3, 2011, 8:57 AM How do you all handle adjustments in paraffin temps depending on different brands of paraffins? Last time I ordered, I received a different brand of Paraplast than my usual and it is obvious that the temp on the tissue processor needs to be adjusted up, as the paraffin is collecting in large amounts all over the top of the cassette basket and is difficult to clean. To adjust the temps on the paraffin baths works just fine (as in up to 60 degrees), which raises the actual paraffin temps up to 62-64 degrees and is then back to easier melting and cleaning, but the manufacturer packaging states 'do not heat over 62 degrees'. I can revise my QC maintenance sheets to alter the temperature ranges so I am not constantly out of range; however there is the issue of the packaging.... Can't wait to get all this brand used up; I want my McCormick back! Kimberly D. Kolman, HT, (ASCP) Diagnostics 115 VA Eastern Kansas Health Care System 4101 S. 4th St. Trfwy. Leavenworth, KS 66048 ph: 913-682-2000 x 52537/52539 _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet