How do you tell if your malamute is deaf?

First of all, it would be helpful to take it to a vet to make sure, they'd probably do some tests, but to test at home, you could try this. Say it's name clearly, when it is not facing you, and maybe shake its treats or food bowl, or open some canned food. If they turn around, or make a reaction, he is probably not deaf, but actually, its possible they just felt vibrations, and turned to face you. If you arent sure, or think that he might be deaf, take him to a vet.