What temperature should I remelt the gelatin

Discussion in 'Silver Gelatin Based Emulsion Making & Coating' started by narigas2006, Feb 23, 2007.

  1. narigas2006

    narigas2006 Member

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    Hi, if you wanna re-use some made up gelatin for coating, what temperature should I remelt? Could the gelatin get fogged after sensitisation by melting it in a high temperature? cheers
     
  2. Photo Engineer

    Photo Engineer Subscriber

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    Gelatin does not fog by heating to any reasonable temperature (30 - 90 degrees C have been used), but if held over 60 deg C for extended periods it loses some of its gelation properties.

    Bacteria and mold can form in it if it is held at high temperatures for too long, and will grow in it even chilled to 4 deg C if it does not contain a bacteriostat.

    PE