You can actually buy a product that is essentially dead yeast packaged as a nutrient:
http://www.lallemand.com/Brewing/eng/PDFs/...A4%20juil03.pdf
It's designed to be a bit better than just old dried yeast, but this underscores the fact that old dried yeast (which I have a lot of) can be used as a nutrient.
An earlier post in this forum made me aware that Lallemand makes more yeasts for brewing beer than just Nottingham and Windsor (someone mentioned their Munich strain).
Is the following one commonly available in Australia? Is it any good? (I should probably post this again in another forum, but let's see what response I get here first.)
http://www.lallemand.com/Brewing/eng/PDFs/...Sept%202004.pdf
Don