Then wrap it up and put it in the back of the drawer/cabinet. I ended up doing that with some Black Raspberry Vanilla GMS many, many years ago. I bought the last dozen bars this gal made and carefully squirreled it away...no one else was allowed to use it except me. Two years ago I was cleaning out a drawer in the small cabinet in the bathroom and I found a bar. It was a good 10 years plus old by then. It had been packaged in tissue paper, which was very, very loose...taught me that soap continues to cure for years. It smelled a bit like Black Raspberry Vanilla...abet a bit old and slight musty BRV. Very, very mild...almost too mild. It didn’t want to lather up at first, but I let it sit on the bottom of the tub for a few minutes and it was just like old times.