This packet has been opened and a very small quantity removed. The bag still weighs 452 grams including packaging) so that shows how little has been removed. I bought this for a rescue found budgie but sadly the little budgie passed away. I don't know anyone else who keeps birds so I'm hoping this will be of use to someone as I paid £17.99 for it! The packet was opened on 18th March and it is a sealable packet so has been kept sealed and stored correctly.