Re: HIE Survives Heat

[Bertha Adamson <badamson@xxxxxxxxxxxxx>]

Andrew Frazer wrote:
> 
> >"you've kept these in the frig, haven't you?". She got this horrified
> >look on her face and said they had been in her car for 3 days. This
> >was during a period when we had 90+ degree sunny days, so who knows
> >how hot the car got each day!
>
> However, we should take a station break to remind everyone on the list
> that although it's a great idea to store film in the fridge for extended
> periods of time, it is not necessary, even for HIE film.  I've had HIE
> film at room temperature for eight weeks with no problems.  I've heard
> of other people on this list who said it can last a year.  I also seem
> to remember that Laurie White's book claims that refridgeration is
> not necessary, either.  It's good to know that I don't need to pack
> blue ice with me across the world.
> 

Yeah, I suspect telling people to refrigerate film is primarily a CYA
precaution since you don't know where the people who buy the film will be
living or visiting.  It is also a good way not to do something harmful
unintentionally.  For example, in my home, the light comes in the back window
for the last few hours of the day, but it is very strong and bright.  Anything
left on certain counters and  tabletops in the sun path can fry.  If I had the
type of job where I was gone from early morning to early evening, I would
probably never know this and could easily have used this area as a spot to
keep a few film canisters handy for days if not weeks.  (I know it is a bad
place to leave certain items as I left the remaining bottle of a rather decent
wine there and it was well-cooked the next day.)

So I guess refrigeration is best described as a good idea as a general
precaution, a safe place to keep the film out of harm's way, and a way to
minimize any cumulative effect, but not a constant necessity.

PS. Maybe the woman with the film has a garage or luckily kept them in one of
those spots in the car that seem to stay a little cooler than others.

Bertha

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