2. Substance Diner in Tucson, AZ, is a mobile food truck serving gourmet comfort food and specialty coffee to the Tucson community and surrounding areas.
Operator computes a Health score continuously. It is the one number that tells you if this shop is winning, losing, or steady. Here is how Substance Diner broke down on May 9, 2026.
Operator ranks every food truck in Tucson continuously using reviews, response rate, and local market share.
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