If you must ship your film to another location and it must be packed, then you will have to dry it before
wrapping. There are a number of ways to dry the film.
a. Place the film cassettes in one pound of dry rice or tea leaves. Usually about a dozen rolls can be
protected in this way. It takes about two hours to dry the film. It can then be wrapped in waterproof paper and
b. Tea leaves and rice can be dried in an oven to remove moisture.
c. Silica gel is another way to remove moisture. Usually two ounces (2 oz) of silica gel will protect one
cubic foot (1 cu ft) of space. This is a general rule and amounts may vary. For example, if you have 8 cu ft of
space to protect, you need 16 oz (2 oz X 8 cu ft) of silica gel.
Keeping your film dry is a 24-hour-a-day job. Color film is much more sensitive to heat and humidity
than black and white film. Loss of color and shifts in color balance can be avoided by keeping it dry and
processing it as soon after exposure as possible.