Dry riesling (that is actually dry — but that’s another topic for another day) is harder to make that many people realize. Without careful, thoughtful decisions in the vineyard and in the cellar, you can be left with that I always refer to as “lemon water” — shrill, acidic wines that have a pithy, often-bitter citrus note but little else in terms of flavor or concentration. With Sheldrake Point Vineyards 2013 Dry Riesling ($16) winemaker Dave Breeden shows his deft touch. Aromas of lemon-lime, dried pineapple and just a bit of peach lead into a palate that is crackling with acidity…