Infamous During The Civil War, This Seriously Old-School Survival Food Has Been Around Longer Than You Think - Tasting Table
Briefly

Hardtack, a simple blend of flour and water baked to extreme dryness, symbolized the arduous demands of survival during the Civil War. Soldiers faced this unyielding ration, often infested and nearly impossible to chew, as a necessary evil in their quest for sustenance. Diaries depict hardtack not as a comfort, but as a testament to the stark realities of war, demonstrating that mere caloric intake was vital for endurance. Its history predates the Civil War, having served soldiers in multiple conflicts, reminding us of its austere role in military sustenance.
Hardtack stands as a meal of qualified negation; it is not food for joy, but a calculation designed for survival in dire conditions.
In diaries, hardtack symbolizes deprivation, serving not as a taste of home but proof of the minimal caloric fuel needed for soldiers to endure.
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