Why are metal reels necessary? Anything hot enough to melt plastic reels would be damaging the tape too. We bake tapes on plastic reels and U-Matic videos in the cassettes all the time with no problems. David Robert Hodge wrote: >Hello > >Baking your reel to reel tape requires the following: > >1- VERY IMPORTANT !!- Put the tape on a metal reel. When >transferring the tape to the metal reel, don't allow it to rub against >guides or heads in the tape machine as it will cause the sticky shead to >build up in clumps randomly on the tape, and make it all but impossible >to remove. Wind the tape loosely on the reel. Reels should be evenly >spaced with an empty reel between each full one. > >