As i have posted before i have tried just about every fruit fly media going and in the end settled on just banana for my fruitfly cultures which works well with only minimal smell.
I have asked Alan about his method of rearing fruitfly in the past, but with me having bad experiences with using potato flakes due to the smell, i never got around to trying it.
However i sat and watched the link posted,did EXACTLY as Alan advises and have to say that, he has done it again, that is definately the best and most productive method i have used, no smell at all,and huge amounts of flys.
cheers Alan