2-isobutyl-3-methoxypyrazine, or IBMP*, is a powerful compound responsible for herbaceous and/or green bell pepper aromas. It is an extremely potent flavor compound, with reported sensory thresholds as low as 6 to 15 parts per trillion in wine. IBMP in grapes directly influences final levels in wine and may be crucial in making picking decisions.
*this analysis is subcontracted; sample turnaround time is ~7 days.