Test-E powder, for how long can it be stored?

[snuff-sann]

Hya,

Been using testosteron entanthate homebrew for some time but now I'm going OFF for a while.
I still have quite a bit of powder left. I keep it stored in my fridge. It's packed in two sealable plastic bags with aluminium-foil wrapped around it.
The question is, for how long can I keep it in the fridge stored?
Or do I need to brew everything?

Does anybody can provide me with some good advice?

Cheers.

 

[crazypaver1]

gear itself can last 4or5years, i have no idea about the powder itself but if worse comes to worst the cook it all an bang it a cupboard out the way