Ask Wine Wizard
Sam Mainard — Elk Grove, California asks,
Every year before harvest I get a winemaking product catalog from various wine industry suppliers like Laffort, Enartis, and AEB USA, and they have quite the bewildering array of tannins, additives, and all sorts of things they claim will improve your wine. My neighbor has used gum arabic for a couple of years and swears it improves his white and red wines. Could you please tell me a little bit about what it is, how to use it and what it might do for my wines? I typically make Cabernet Sauvignon and a little bit of Chardonnay, all dry, all barrel-aged for at least one year.