ProblemThe present invention is to provide a generation method that can generate 3,5-dihydroxy-4-methoxybenzyl alcohol, which was not found at all from raw oyster meat originally, at an extraction phase of oyster meat essence.SolutionThe present invention heats raw oyster meat from which 3,5-dihydroxy-4-methoxybenzyl alcohol is not detected in a raw state at 98° C. to 100° C. for six hours or more to generate 3,5-dihydroxy-4-methoxybenyl alcohol from oyster meat liquid on which the heating process has been performed.