Reuse Perlite after blight ???

[49tandc]

I had twenty five 5-gal dutch buckets of tomatoes growing in perlite under shade cloth (North Florida). Because of the excessive rain and high temps, I lost all plants to blight. Can I reuse the perlite (clean/bleach/???) or should I just start over with new perlite? Twenty five 5-gal buckets of perlite is a lot of media and if I can save the $$, I'd rather do it.

Thanks,
49T&C