Storing Seed Potatoes

Hello,

I went to one of the potato days and got a little over excited, I had a plan of which varieties I wanted and how many I needed. Came out with completely different varieties after taking advice and twice as many as required.

I have given some spares to friends but would like to store what is left either for a second crop (first earlies) if I have time or store until next year if possible?

I am planning on planting the following varieties early to mid March on an allotment:

Vales Emerald (First Early)
Lady Christl (First Early)
Red Duke Of York (First Early)
Santana (First early)
Arran Victory (Late Maincrop)

I have tried to stick with first earlies as last year slugs got in the potatoes, the slug holes where filled with baby millipedes when harvested.

Currently the spares are in nets within two hessian sacks (one inside the other) which are inside a large plastic storage box in the garage.

Please advise if storage of the seeds/tubors is possible, if so what are the best conditions to store them in?

Many thanks,

Chris