Brewery Supervisor Joe Walls flushes the line before transferring the wort, a sweet liquid made from steeped grains, from the kettle into the fermenter during a trial brew at the new brewery at the WKU Research & Development Center.  Walls, who started on the  Alltech Lexington Brewing & Distilling Company bottling line three years ago, was the sole employee managing the construction and trial runs at this location until recently. The brewery, a partnership between WKU and Alltech, now employs two WKU students and is producing College Heights Ale, which can be found at local restaurants including Mellow Mushroom and White Squirrel. Leanora Benkato/HERALD