Mechanite
While I love the idea of a flask of soup, how da fuk do you get broccoli cheddar into a flask! When I have used them, I can barely get alcohol into the flask with the tiny funnel without alcohol abusing the counter?!?!
Ok, you start by fabricating a funnel that screws to the neck of the flask. It’s a bit of time on the lathe, but you only need to do it once.
Attach the funnel to the flask, and fill it with you soup of choice. Then place the entire contraption in your vacuum chamber and pump it down, slowly, to the lowest pressure it’ll manage. Don’t go quickly, or the soup will bubble out of the funnel, unless you made it particularly deep. Once you’ve evacuated the flask, and let the soup settle back down in the funnel, bring the pressure back up. At that point, the vacuum will suck the soup in to the flask. Once you’re back up to ambient pressure, detach the funnel, give the flask a wipe, close it and go about your day with a loaded soup flask.
Simple really.
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.