Commercially available hardtack is a significant source of food energy in a small, durable package.
A store-bought 24-gram cracker can contain 100 kilocalories (20 percent from fat), 2 grams of protein and practically no fiber.
Commercially available hardtack is a significant source of food energy in a small, durable package. A store-bought 24-gram cracker can contain 100 kilocalories (20 percent from fat), 2 grams of protein and practically no fiber.
Hardtack