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19The popularity of projective mapping with consumers for sensory characterization has 20 markedly increased in the last five years. To have confidence in this methodology it is 21 necessary to ensure that a similar product profile would emerge if the test was repeated. 22Also, deciding whether the study should be replicated or not is a key issue in test 23 implementation. In this context, the aim of the present work was to evaluate global and 24 individual reproducibility of projective mapping for sensory characterization with consumers 25 and to evaluate the influence of the size of difference among samples. Six consumer studies 26were conducted using a test-retest paradigm. In each study, responses from the same group 27 of consumers to the same sample set in two different sessions were compared. Across the 28 six studies individual reproducibility tended to be low. However, the RV coefficients of 29 consensus sample configurations between sessions were higher than 0.75, suggesting that 30 test-retest reproducibility of projective mapping with consumers proved to be relatively high. 31 PRACTICAL APPLICATIONS 32The present work provides evidence of the reproducibility of projective mapping for sensory 33 characterization with consumers. Although sample configurations were stable, some 34 differences in conclusions regarding similarities and differences among samples were 35 identified between sessions. This indicates that care must be taken when relying on results 36 of projective mapping with consumers obtained without the use of replicates, particularly 37 when working with sample sets with small differences. Results from the present work showed 38 that stability indices of sample configurations based on boostrapping resampling approaches 39 were related to global reproducibility. These indices could be useful to decide whether or not 40 it is necessary to replicate projective mapping in order to ensure that conclusions regarding 41 similarities and differences among samples would be repeatedly identified. This is of 42 particular interest considering the difficulty of asking consumers to attend separate sessions. 43

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