My main maincrop, Maris Piper will remain hard no matter how long I boil
them.
I have some other varieties that are OK. but I have loads of Maris Piper.
I don't suppose there is anything I can do about it. It is going to be a
huge waste.

Some people on the allotment are going to store theirs hoping that a bit of
coolness or whatever might sort it.

Should I write them off? Or store them in the unlikely event that this
would fix them.

Cheers
Baz