I also store my bulk fish food in the freezer with good results.
Juli, rather than using the 7 day pill minder for your fish food, you can get an empty shaker type spice jar at most department stores. They usually have a perforated plastic lid and you can use a piece of clear tape to plug off the holes so it only dispenses the amount you need per feeding.
I also use empty vitamin bottles that have a flip open lid and just cut a small circle of fiberglass window screen and insert it inside the lid. The small .5mm NLS food that I use dispenses easily through the holes in the correct amount.
The most important things to remember about fish food is to keep it dry and away from heat and light.
Eheim Pimpette #270
Eheim Pro II 2028; Classics Series -2215, 2217, 2260, 2262; Pro 2229 Wet/Dry