Strange.
I first started using orange peel to combat a mold issue during curing.The bud had not been properly dried and started to get the first hint of mold.
I was advised to remove the white from the peel leaving only orange 'zest'.
I plopped it in, it stopped the problem dead.
I breathed the jar each day so that helped as well.
Left a nice smooth taste and never molded.
I left it in till it was dried out.
Works for me.

peace.