How long does hay stay fresh?

[deguden]

Hi, I recently bought a 7kg box of fresh meadow hay for the goos ( www.etsy.com/uk/listing/777157472/box-of-proper-farm-fresh-organic-meadow?ref=hp_rv-6 ). They seem to love it and it smells great, but I was wondering how long I can keep it fresh in the box. Its stored in a very cold, dry place. 

[moletteuk]

I used to put a week or two's supply in a carrier bag and then seal up the main bag to keep it fresher for longer. Then use the carrier bag to top up the cage supply a couple of times a day.