I mentioned it above, I have a citric acid, malic acid, honey mix that I use. I just steam the leaves a little to make them pliable, destem, and then use a spray bottle to apply a light coat. I have a weird aversion to sticky on my fingers, so I use a very light coat. I tried using calcium prop as anti microbial one year, but it had a weird taste to it. So, I started using the pasteurization method instead, and the light acids taste way better, IMO. This casing has a light honey apple flavor, very much in the background, not a forward sweetness at all. I've tried rum and licorice, but I have settled on this one.
Roses.... mmmm, maybe not my taste. But, try it.