The Bakers sweetened coconut flakes have preservatives, too. And no, I haven't done it yet. My beer is still bubbling in the primary fermenter (maybe 1 bubble per 10 seconds). I'll take a gravity reading sometime later today to see how she's coming along.
I asked some of my cohorts in homebrewing here in South Korea (homebrewkorea.com) about where I might be able to get some organic coconut flakes locally. Someone mentioned I might be able to get it at a local foreign food market. I'll try and go there soon. Maybe today if the beer is ready for the secondary transfer. I'll keep folks posted on how it tastes.