Sun drying tomatoes at the foot of Mount Etna in Sicily

You would be surprised under which conditions many of the basic food items you are eating daily are produced...

This is not that bad, actually.

The tomatoes are prepared with salt, as it seems (you can still see some salt crystals between them) and will dry relatively fast in the sun and hot wind of southern Italy.

Salt and water removal will quickly make the tomatoes a hostile environment for any kind of microbiological life.