[Histonet] Glycerol jelly

[Pumla Pamla-Gutter]

I've recently started using home-made glycerol jelly as my mounting
medium---composition gelatin powder, water, and glycerol. I keep it in
the fridge at 4 degrees and melt it before use. It's great for dark
field images, but I'm worried about bacterial growth. I haven't had
any problems yet, but I was wondering if someone else out there uses
this and what they do to prevent the growth of mold, etc... and how
long do you keep it before you toss it?
Thanks,
Pumla Pamla-Gutter
(614)292-4046