Entered a handful of beers into a competition. Three were all Belma; an Amber Ale w/ 15% rye, a Blonde and an APA. Wasn't expecting anything other than to see what a blind taster would think of this hop. All the Belma hopped beers were checked for diacetyl by six different judges.
The recipes and methods were the same as I've used before except for the Belma hops. The other non-Belma beers entered (along with beer from past competitions) did not get checked for the flaw even though they were fermented using the same procedure and temperature control throughout the process.
So, the question is, has anyone experienced a flavor or aroma that could be termed as diacetyl while using Belma hops? (or should I be looking somewhere else?)