MBR PN4, also known as "The Rocket", was isolated from a spontaneous malolactic fermentation in a Pinot Noir by the Institute of San Michele in the Trentino region of Italy. This strain has been known to perform under difficult conditions such as low pH (3.0-3.1) and high alcohol (up to 16% v/v). Temperature tolerant to 14°C(57°F) and tolerant to total SO2 levels up to 60 ppm. Known for its fast fermentation kinetics. Especially suitable for spicy and structured Pinot Noir wines.
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