Yeasts

Single-celled microorganisms used to convert sugar to alcohol and carbon dioxide during fermentation.

Red wines from the Cornas appellation within the Rhône Valley must be made from what?

A. A blend of grenache, syrah, and mourvèdre

B. 100% grenache

C. Predominately syrah with a small amount of viognier

D. 100% syrah

Wines from Cornas must be made 100% from syrah grapes. Located at the southern end of the northern Rhône, Cornas’ reds are dense, edgy, and darkly earthy. To feel a truly untamed Cornas on your palate is to feel like your tongue is being lashed by strips of leather. While not everyone loves Cornas, those who do, love it madly. Cornas’ are generally aged for seven to ten years before consumption.

Mercaptans

Offensive-smelling compounds that result from poor winemaking when hydrogen sulfide combines with components in the wine. The aromas can include putrid food, skunk, and burnt rubber.

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