Concentrations of NaCl and sucrose: equality in perceived taste intensity

Results from previous studies suggest that sucrose and NaCl solutions have an equal perceived taste intensity when the molar concentration of sucrose is 1.5–1.75 times the molar concentration of NaCl. However, according to other studies, sucrose and NaCl solutions taste equally strong when their molar concentrations are about equal. This issue was further pursued using the method of constant stimuli, where subjects matched the perceived taste intensity of NaCl solutions to five sucrose references and vice versa. The results concur with previous findings that sucrose and NaCl solutions have equal perceived taste intensities when the molar concentration of sucrose is 1.5–1.75 times the molar concentration of NaCl.