Therefore, to exploit the HePS production capacity of a yoghurt starter strain maximally, a new, two-step, process technology for yoghurt production has been proposed (Degeest & De Vuyst, unpublished results), consisting of a first, HePS production step through on-line control of the pH of the inoculated milk, followed by an acidification step to allow clotting of the milk and to improve aroma and taste formation.