But how are they to know if it is off? Correctly stored EBM can last for up to 6mths - some mums will express like a madwoman in the first few weeks when you are really full and can easily get lots of milk out and then use that over the next few months. I put the date on my EBM but I know how it will be defrosted and stored and used so it doesn't concern me. I think it is a valid concern that milk from a certain period of time might be thrown out.

Definitely get their new storage guidelines and check them out. ABA has a really good booklet about expressing and storing breastmilk, the info is also on the website, so you can refer to that if you need any ammunition!