ELISA negative qPCR detected results are common in food laboratories due to differences in target detection, sensitivity, and matrix effects. Understanding whether DNA persistence, protein degradation, or analytical sensitivity is responsible is critical for structured and audit-defensible decision-making.

Allergen testing requires the right tool for the right question. This post explains qPCR vs ELISA in allergen testing, when to use each method, and how both support effective allergen control and confident decision-making.