Serious Heat: 30 Evidence-Based Uses for Leftover Salsa

Leftover salsa is not “waste waiting to happen”—it’s a microbiologically stable, pH-acidified (typically 3.8–4.2), shelf-stable condiment that retains enzymatic activity, volatile aromatics, and functional acidity for up to 7 days refrigerated (FDA BAM Chapter 17, *Salmonella* screening confirms no pathogen…

