I know I mentioned this but whats so wrong about castoreum?? I know beaver is some places a protected species but in western europe at least beaver poaching is not a big problem. It has a several thousand probably years of use as medicine and perfume. I just ordered a skinsalve made from castoreum and bearfat from a swedish trapper. Only concern I have is wether it might have some antimetabolic (estrogenic) compounds but I will test for reactions incl temps pulse sleep and likescastoreum is extremely valuable in perfume making
it has effects on flavors, and perfume mixing and scents...
it probably does something to the ice cream flavor, that simply applying strawberry juice wouldnt do