People come to me and say, 'My wine stinks. What happened?' Langstaff can read the stink. Off-flavors-or defects, in the professional's parlance-are clues to what went wrong. An olive oil with a flavor of straw or hay suggests a problem with desiccated olives. A beer with a hospital smell is an indication that the brewer may have used chlorinated water, even just to rinse the equipment. The wine flavors leather and horse sweat are tells for the spoilage yeast Brettanomyces
Langstaff, a professional in sensory analysis, is often approached by wine enthusiasts who notice unpleasant odors in their wine. These off-flavors, or defects, provide essential clues about the mistakes made during production. By identifying specific scents, he can diagnose the source of the problem, whether it's with the ingredients or the process used in fermentation.
For instance, if an olive oil has notes reminiscent of straw or hay, it indicates a...
