I'm making a sherry this weekend (all fermentation, no hard liquor) and I'm wondering if its possible to get the oxidation you'd get from a barrel. I read on Jack Keller's site that he uses a wad of cotton as a stopper on the secondary to develop the flor (basically a pellicle). Has anyone tried this? Would putting a cotton ball in the 3 piece airlock without the inside piece work the same? I don't want to have to buy a giant wad of cotton if I can use what I have.
Would this also give me the oxidation?