Pervasive Species by Monday Night Brewing is being evaluated as Mixed-Fermentation Sour Beer (Category 28B) from the 2015 BJCP guidelines. 

This beer poured yellow golden in color with medium haziness. Many small bubbles were seen rising to the surface, giving it a near champagne likeness. It’s white mousse-like head was thick and dropped quickly.

The aroma opened up to a high amount of fermented pineapple juice, moderately acidic, dry, green banana aromas that become fruity, dry grainy malt, no big funky character from the mixed fermentation. A green woodsy character emerges as it warms. 

Flavored with an unsweetened pineapple juice character, with balanced acidity, and some fruity esters that challenge the senses. Unripe berry fruit in the flavor, long drying finish with a moderately acidic aftertaste, low in the way or tartness. This beer is delicious and refreshing, the fruity flavors become more and more agreeable as you continue to sip.

Medium light bodied with high carbonation and little in the way of creaminess give this beer a pleasant mouthfeel. A little puckery due to the nature of the yeasts used, but remains true stylistically.

An exceptional beer with great flavor and balance. The green wood in the aroma can be an individual preference; and may benefit from laying down a few bottles to see if it soften those edges. Refreshing and very drinkable with a light presence. Enjoy one now, and another in a couple of months to see how it develops.