I have soap wrapped in paper and bound by ribbons that have been stored that way for a good 3 or 4 years and they are holding up just fine. Of course our humidity is not what it is in the Phillipines, but I think it depends on the type of paper used, too. I was using any paper available to me. The one that doesn't hold up is thin tissue paper, the kind used for wrapping gifts or presents (weddings, birthdays, Christmas, etc.) The humidity gets to that paper pretty fast. But craft paper, thin decorative paper and plain newsprint paper holds up pretty nicely even when the humidity rises and drops repeatedly. Still, I don't live in a monsoon-type climate. And my recipes are probably somewhat different, and I am sure that is a factor as well.