Our Ddog does this too after every meal. I thought it was eating too quickly too so got one of those bowls that slow feeding down but it made no difference. He only does it once and seems fine. We changed his food when he was a pup but he still did it regardless of what he was eating.
New terrier x rescue dog burps after eating. Every. Single. Time. She's not greedy, so I don't think it's because she's rushing her food. I'm only worried in case she's getting acid reflux with it or something. I've had her on different types of food (dried) and no difference. She's going to the vet for jabs soon so I'll mention it then, just wondered if anybody else's dog is just a burper or if you've had experience of it being related to something else??