Dahlias: Digging and Dividing in Autumn, 1 by Poochella

Poochella wrote:
Once your tubers are all trimmed up, if you choose, you can keep a bucket of about 10% bleach water nearby and drop your labelled tubers in for a soak as added protection against fungus and bacteria. Anywhere from 5 minutes and up works for me. This gets them nice and clean. I fish them out with a kitty litter scooper to keep my hands warmer.

In the end, if you're lucky, you should have labelled clean tubers with eyes ready for storage in the method you choose. These will go onto a screen to dry overnight. Then they get shaken in sulphur dust/vermiculite in a baggie for further antifungal protection, Saran wrapped and packed in a ziplock bag inside a cooler for winter.

And then the wait for April begins!