How can I fix Efke film curl?

Photo Engineer said:

Pete;

Is this old or new Tri-X? That is, how old is it? Film kept spooled and refrigerated or frozen for a long time will develop a 'set' that causes it to curl as you describe.

The Kodak conditioning is at 75F/50% RH. This is optimum.

PE

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I've tried it with some 1991 vintage film (not stored anything close to properly) and brand new stuff from the camera store. Both produced identical results.

I'll note that temperature; it was probably 62-64* in the room I hung it in to dry (keep the house pretty cool during the winter to save $$$ on heating!)

Wash, dry, hang, sleeve just after totally dried, press under dictionary for a day or two.