A lot of "normal" CB checkereds sold turn out to be albino hets even if they aren't sold as such. Same goes for "normal" baby corns you find in the pet stores. They'll get a clutch of albinos (or other morphs) and hets so chances are if you see a few babies in the pet store together with an albino (or other morphs) or two, the normals are usually hets.

One or both of the parents of your male were likely albinos, making him 100% het. Since he's produced albino babies, he has to be het or you would have got all normal looking babies. Those normal looking babies would be 100% hets since you know the mother is albino.

When you sell any normal looking babies you get from this next litter, you can say with confidence that they are 100% het for albino.