To determine if there were relationships in APC recovery between the rinse and crush-and-rub sampling methods (for each individual egg), Pearson correlation coefficients were determined for both the overall experiment and within each individual treatment group. High correlations would indicate that the variability in rinse APC recovery could predict identical variability in crush-and-rub APC recovery for each individual egg. Overall, the correlation between aerobic bacteria recovery for the rinse and crush-and-rub sampling methods was high, at r = 0.71 (Figure 2A). Within each group, the no-treatment group exhibited a correlation of 0.55 (Figure 2B), the water group exhibited a correlation of 0.72 (Figure 2C), the H2O2 group exhibited a correlation of 0.67 (Figure 2D), the phenol group exhibited a correlation of 0.73 (Figure 2E), and the Q4B group had the lowest correlation, at 0.38 (Figure 2F). The correlations for the water, phenol, and H2O2 groups were all similar to the overall correlation (r = 0.71).