My first bit of fun was the same, I suspect, as most people who invest in one of these. Compressed fruit or vegetables. I had purchased a small watermelon for this very purpose. Having cut the fruit into inch thick, quarter slices, I placed some slices in a vacuum bag. Placed the bag in the machine. Set the vacuum time to 35 seconds to give a full vacuum and a 6 second seal. Once I had pressed the start button, the machine went through it's process and when the beep sounded I was able to remove the bag. This is the change that the fruit undertook
As you can see, the fruit is compressed, translucent and appeared much juicier when eaten. There was no change in flavour but the texture felt richer in the mouth. The reason for the change is that the alveoli (air filled cells) in the food burst under vacuum. Then, when the bag is sealed and the vacuum released then 15lb per square inch of air pressure crush the now empty alveoli leaving the fruit more dense.
Now I have this great gadget I hope to post more new experiences such as maple pickled turnip, olive oil pickled tomato as well as some molecular recipes.