In 2009 or 2010 I bought a kilo each of Cella and Vitos Super. At that time, I read about how Italian barbers stored such soaps for a decade. Based on their procedure I wrapped the kilos in wax paper and placed them in gallon size freezer bags and into a lidded plastic bin I had knocking about. I then stored them in the attic and have used them over the years as part of my soap rotation and after 12 YEARS the soaps lasted fine. I'm on the last bit of soap with the remnants of both in a shaving bowl. Both soaps became firmer but still malleable. In the last years the last bit of Cella became quite hard. Both lost quite a bit of scent with the Vitos retaining the most. The Vitos didn't change color over that time much at all, but the Cella did and in the last year it took on a greyish color but was still usable. Over all those years the performance of both soaps remained the same. So, is it possible to safely store the Italian soap kilos for a decade? My experience says, yes.