Methods for stabilizing liquid coffee concentrates are provided that form a coffee beverage that has a substantially consistent acidity profile. In one aspect, the methods blend a liquid coffee concentrate base with an edible alkali source in an amount effective to artificially increase a pH of the liquid coffee concentrate base. The liquid coffee concentrate base is aseptically processed and thermally treated at elevated temperatures for a time sufficient to artificially drive acid generating reactions in the liquid coffee concentrate to completion to form a stabilized liquid coffee concentrate.