*'''Pediococcus:''' A genus of gram-positive lactic acid bacteria. Can produce diacetyl in both Lambic and other foodstuffs, such as Chardonnay
*'''pH:''' The negative logarithm of hydrogen ion concentration. A measure of acidity, where lower is more acidic
*'''Pipe:''' A large wooden barre generally 550-650 liters in capacity; most often associated with the Port wine industry
*'''Pomme:''' French for ''apple''