Grapevine, Texas – September 16, 2026 -- A musty, sharp, or oddly muted glass of wine may not be a matter of taste but a sign of an actual flaw in the bottle. Bob Landon, known as "Mr. Wine of Texas" and affiliated with Landon Winery and Red Dirt Cellars, breaks down the most common wine faults so drinkers can tell a flawed bottle from simple personal preference.