Why do americans use kosher salt

Overview

Kosher salt is a coarse-grained salt that Americans use extensively in cooking, named for its role in the koshering process of meat according to Jewish dietary laws (kashrut). Historically, it was developed to meet the requirements of kashrut, which involves drawing blood from meat by salting it, a practice dating back centuries in Jewish tradition. In the U.S., its adoption beyond Jewish communities began in the mid-20th century, with a significant surge in the 1970s and 1980s as culinary figures like Julia Child and James Beard advocated for its superior texture and flavor. Unlike table salt, kosher salt lacks iodine and anti-caking additives, making it pure sodium chloride, and its larger crystals, ranging from 0.5 to 1.5 millimeters in size, allow for easier pinching and sprinkling. Brands such as Diamond Crystal (founded in 1886) and Morton (introduced in 1911) became household names, with Diamond Crystal's flakes being lighter and less dense, affecting measurements in recipes. By the 2000s, kosher salt had become a staple in American kitchens, valued for its versatility in seasoning, brining, and finishing dishes.

How It Works

Kosher salt functions through its physical and chemical properties, which differ from those of table salt. Its coarse, flaky texture, achieved through a process like evaporation or compaction, creates larger surface areas that dissolve more slowly, allowing for gradual seasoning and better control in cooking. In the koshering process, it draws moisture and blood from meat via osmosis, adhering to Jewish laws that prohibit consuming blood. For general use, chefs prefer it because the crystals are easy to grasp between fingers, enabling precise sprinkling without clumping, unlike fine table salt that can lead to over-salting. The absence of iodine, added to table salt since the 1920s to prevent deficiencies, gives kosher salt a cleaner, less metallic taste, which is preferred in recipes where flavor purity is key. In brining, its slow dissolution helps evenly season meats, while in baking, it provides a crunchy topping without dissolving too quickly. The variation between brands, such as Diamond Crystal's hollow flakes versus Morton's denser crystals, affects saltiness per volume, requiring adjustments in recipes—for example, 1 teaspoon of Diamond Crystal equals about 1.5 teaspoons of Morton's in sodium content.

Why It Matters

The use of kosher salt matters because it reflects broader trends in American culinary culture, emphasizing quality, control, and tradition. Its popularity has influenced cooking practices, with many professional chefs and home cooks relying on it for consistent results, as seen in TV shows and cookbooks that often specify kosher salt in recipes. This shift away from iodized table salt highlights a preference for natural ingredients, as kosher salt's purity avoids potential off-flavors from additives, impacting dishes from grilled meats to artisanal breads. Economically, it has driven market growth, with kosher salt now comprising over 20% of U.S. salt sales, supporting brands that cater to diverse cooking needs. Culturally, it bridges religious observance and mainstream cuisine, showcasing how dietary laws can inspire widespread culinary innovation. In real-world applications, its use in restaurants and homes ensures better seasoning control, reducing food waste from over-salting and enhancing flavors in everything from cocktails to cured foods, making it a key tool in modern American cooking.