Variety: All Purple. To cure I managed to build heat incubator. I made it as expanded polystyrene box, I put electric heat tape inside to maintain temperature. Washed, wet tubers have been packed into plastic bags with a few small holes, then put to plastic fruit crates. All of that placed inside expaned polystyrene, hermetic (almost hermetic) box together with electric heat tape + thermo regulator to maintain temperature inside. Polystyrene box is very good isolator, so it's easy to maintain required temperature inside.
I also have some temperature sensors. First one, directly inside the box, connected to temperature regulator and it's set to +32 °C (89 °F). Sensor inside plastic bags, with tubers inside shows 30-31 °C (86-88 °F) and humidity 90-95% so, conditions looks fine.
However, after 2 days tubers started sprouting, some new, thin, white roots apprar on them, while cure process is definitely not finished yet.
Is that sounds ok? Have you experienced similar issues with sprouting? Is that really a problem? Am I doing anything wrong? How long should I wait to be sure they are cured correctly? And how do I know it's enough for them.
[edited] I guess sprout is not my only problem, I have no idea what's that on them:
It does not look like mold, but not looking good. Only some of them affected.