(Wines&Vines) - As a winemaker in the Napa Valley since the 1980s, Celia Welch remembers some early oak experiments that worked out, along with some that didn’t. Like the time she reconditioned some barrels by having the interiors scraped and retoasted. The wines she then matured in them turned out to have vague aromas of propane that just wouldn’t go away.

On the other hand, she remembers doing a trial with barrels that had two different toast levels that were not clearly defined for her by the cooper. Tasting the trial wines with the cooper and the barrel rep after a year, “There was definitely a difference in the wines that I could taste, and they could, too,” she said. “They started talking to each other about it in French, and laughing, and I couldn’t keep up with what they were saying. So they stopped and explained that the difference was less than one minute on the fire out of 45 minutes.”

Welch will share experiences like these and take questions from other winemakers attending the Wines & Vines Oak Conference on April 27 at the Culinary Institute of America, Greystone, in St. Helena. Her topic as the keynote speaker is “Hey, They’re Just Barrels…What Could Possibly Go Wrong?”

Welch is in high demand as a consulting winemaker with eight clients in Napa Valley from small to large. She is the winemaker for Scarecrow—the coveted Rutherford Cabernet Sauvignon from the J. J. Cohn estate—and produces her own Corra Wines brand. Over the years she has worked with French, American and Eastern European oak barrels, plus a variety of oak adjuncts.