[Otto72]

I have 3 bags of Oliver Knott Substrate (one huge bag and 2 small bags) from about a year ago, all still in sealed original bags (bags have always had small air holes to breath) they have been stored in a cardboard box in my garage, I brought them in about a week ago, they seem to still be fine as far as I know.
My question is, do substrates go off? there's no use by date on it so I'm assuming its still good to use? its not gone bad in any way and still looks the same as when I bought it, so is it still ok to use?
I'm assuming suppliers store these before they sell them for months too right?

thanks for your time guys

 

[tuffgong]

It should be fine. I have never heard of substrate spoiling, since it's just rock, sand, and dirt in various forms.

 

[Hoppy]

I don't recall if that substrate is sold wet or dry. If it is wet, it could develop molds after a long enough time. But, if dry, it should be good for many years on the shelf.

 

[Otto72]

nah its sold dry