Tartaric acid is mainly found in tart fruits such as grapefruit and unripe grapes, and is often used to help lower the PH in fermenting products.Tartaric acid is an essential component in wine and the main ingredient in cream of tartar.artaric acid is mainly found in tart fruits such as grapefruit and unripe grapes, and is often used to help lower the PH in fermenting products.
Pitching Wedge Loft. A typical pitching wedge contains about 45 degrees of loft. By comparison, the highest-lofted iron, the 9-iron, contains approximately 41 degrees of loft, while the gap wedge is typically lofted at 50 degrees. There is, however, no industry standard regarding each clubâs loft. Some manufacturers will build pitching wedges with more or less than 45 degrees of loft.
Gap wedges range in loft from 50 to 55 degrees and are a compromise between a pitching wedge and a sand wedge. A gap wedge is particularly important to use today because the five-degree difference in degrees between the SW and PW in the 1960s has now grown to approximately 10 degrees.