Inside Phoenix food trucks can hit 121 degrees in summer: 'Sweat and keep going'

On an August morning at Uptown Farmers Market, food trucks have lined up in a half-circle that gives way to stands. At Caffio Espresso Bar, customers stand in line, waiting patiently for coffee. The …
Bron: Inside Phoenix food trucks can hit 121 degrees in summer: 'Sweat and keep going'