[Stephen Walker]

Good day First time poster,
I have some bottles of tomato feed which are about ten years old Is it still OK to use
Steve

[Goosegirl]

They may be still ok but personally I wouldn't risk it for the cost of a new bottle.

[adri]

I'd use it.  What is there to go off?  And if they were sealed with the cap from new then they should be fine.

If you want to be cautious then use it on a couple of plants and if it's OK then you know that next year it will still be fine to use on all.