Not sure about the EU market, in the US most paper or cardboard packaging for use with frozen or refrigerated foods is hard to recycle[1]. 1: https://earth911.

Not sure about the EU market, in the US most paper or cardboard packaging for use with frozen or refrigerated foods is hard to recycle[1]. 1: https://earth911.com/food/frozen-food-box-recycling/ https://earth911.com/food/frozen-food-box-recycling/