Tassimo coffee maker (Addiscombe CR0)

I have a Tassimo coffee maker and a bunch of coffee pods. It comes with a couple of reusable pods, but I started having trouble with them bursting so gave up and got an aeropress. I also have a load of pods. There are some fully sealed which are in date, but the others MIGHT BE OUT OF DATE, as there is no telling once the outer plastic has come off. I haven't bought new ones in a long time, so very likely out of date.