using old yeast for nutrient?

[montveil]

I have several packages of out of date dry yeast of different strains.
I was wondering if I could use them as nutrient addition to another batch?
Being of different strains, I could de-activate them by hydrating them in water then microwaving which should burst the cells.

Can I do harm or good by adding such yeast to my batch?

Thanks

 

[JohnT]

I would simply toss the yeast into the gabage and go with a good, quality neutriant like fermax instead. The dead yeast may entice yeast breakdown (something that you WANT to avoid).

Honestly, what do you save? Yeast is like $1 a packet. Why run the risk of ruining a batch over just a couple of bucks!