Hmm. I’m not sure how well that would handle the lumps. The advantage of using a vacuum is that the lumps can be up to the size of the flask neck. I’d expect that a syringe would have a much smaller bore, so would only really be suitable for broths and smooth soups. I’m not a vetinarian though, so I could be underestimating their size however.
Or you could just inject the soup using a veterinary syringe.
Hmm. I’m not sure how well that would handle the lumps. The advantage of using a vacuum is that the lumps can be up to the size of the flask neck. I’d expect that a syringe would have a much smaller bore, so would only really be suitable for broths and smooth soups. I’m not a vetinarian though, so I could be underestimating their size however.