Seems I got Spraing

The stored tubers of Marfona potatoes have got this thing called spraing.
Is it still ok to eat the tubers or do I have to get rid of them?
They have the tell tail signs of the rust ring inside and do boil up ok once you dig out the rings.
Found this on the DEFRA site, not to sure if it helps
http://www.fera.defra.gov.uk/plants/publications/documents/factsheets/spraingPotato10.pdf

 

Can't think of a reason you can't eat them apart from them not looking very nice.

 

Thanks Zigs, not sure if tubers were ok thats all.

 

No worries, can't find any info that suggests it would make them bad to eat, just don't replant them & move to a different patch for spuds next year incase its the viral version.

I see another cause could be calcium deficiency, difficult to balance out as too much encourages potato scab