Welcome to the latest installment of The Week in Zinfandel. If I missed your post or story please send me a link and I will be sure to include it next week. Cheers! Vino-Sphere writes Wine Bloggers Conference Speed Tasting: Hits and Near Misses. Austin Beeman writes Can a Jackass Improve with Age? A Vertical Tasting of Martinelli’s Jackass Hill Zinfandel.…