Producer Says: Westmalle Extra is the beer provided to the monks of the Abbey of our Lady of the Holy Heart for consumption with their meals. A top fermented 4.8% golden ale designed to be thirst-quenching, full of fruity aromas, and full bodied. Brewed only with whole cone noble hops and, unlike the Tripel and Dubbel, without any brewing sugar additions. Extra is bottled unpasteurised, and is refermented in the bottle too, to preserve the richness of all its component parts, and allow some evolution in the bottle.
See Here For More Info: https://www.jamesclay.co.uk/expertise/westmalle-extra