Bittersweet Findings: Round Cups Fail to Induce Sweeter Taste
An increasing body of literature demonstrates that consumers associate visual information with speciﬁc gustatory elements. This phenomenon is better known as cross-modal correspondence. A speciﬁc correspondence that has received attention of late is the one between round forms and sweet taste. Research indicates that roundness (as opposed to angularity) is consistently associated with an increased sweetness perception. Focusing on two different cup forms (round versus angular), two studies tested this association for a butter milk drink and a mate-based soft drink. Results, however, were not able to corroborate the frequently suggested correspondence effect, but a correspondence was found between the angular cup and a more bitter taste for the soft drink. These results are discussed in light of previous ﬁndings matching sweetness with roundness and bitterness with angularity, hopefully aiding researchers in this ﬁeld in conducting future experiments.