<h1>Si Nonna's earns AVPN certification, confirming authentic Neapolitan sourdough methods and ingredient and oven standards.</h1> Si Nonna's has become the first pizzeria in India to obtain AVPN certification, confirming that its production practices meet AVPN standards for dough preparation, twenty-four hour sourdough fermentation, ingredient selection, oven construction and baking technique, and thereby providing an external assurance of authenticity and conformity across its outlets.