Explained simply
Brettanomyces is a yeast that can strongly change a wine’s smell—sometimes towards sticking plaster, stable or medicine. One unusual smell alone is not enough to diagnose it.
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Natural wine without myths
In more detail
Brettanomyces can form volatile phenols that mask fruit and create medicinal, smoky or animal-like impressions. Perception and tolerance vary, but high concentrations are generally treated as a wine fault. Reliable identification needs more than one quick aroma association.
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Natural wine without myths
What to look for
Do not judge from one unfamiliar note. If fruit stays hidden and several typical impressions appear together, Brett may be one possible explanation.
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Natural wine without myths