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Hardtack

Hardtack is a very hard, dry biscuit or cracker made from flour and water, sometimes with salt added.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Hardtack is a very hard, dry biscuit or cracker made from flour and water, sometimes with salt added. It was widely used as a durable food for sailors, soldiers, and travellers because it keeps well when stored dry. It is also known by names such as ship’s biscuit, sea biscuit, and pilot bread.

Definition

Hardtack is a dense, hard cracker or biscuit made with minimal ingredients. Dictionaries and encyclopedias describe it as a saltless or lightly salted biscuit used as a staple food at sea and in other travel contexts.

Historical use

Hardtack was commonly carried on long sea voyages, military campaigns, and other journeys where fresh food was unavailable. Sources note that it served as a standard ration in many navies and armies for centuries.

Preparation and characteristics

The biscuit is made from a simple dough and baked until very dry, which helps prevent spoilage. Its hardness and dryness are central to its long storage life, though they also make it difficult to eat without soaking or breaking it.

Names and variants

Hardtack has been called ship’s biscuit, sea biscuit, pilot biscuit, and related terms in different regions and periods. Some sources also note that the word has other, unrelated meanings in English dictionaries.

Key facts

  • Hardtack is a simple baked product made from flour and water, with salt sometimes included.
  • It was valued for its long shelf life when kept dry.
  • Historical users included sailors, soldiers, explorers, and migrants.
  • It was a standard ration for many militaries and navies from the 17th to the early 20th centuries.
  • The food is known for being very hard and often bland.
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Canadian context

Hardtack appears in Canadian military and historical discussions as part of broader North Atlantic and British military food traditions, and it is relevant to Canadian readers through maritime history, exploration, and the history of field rations.

Frequently asked questions

What is hardtack made from?
It is usually made from flour and water, and sometimes salt is added.
Why was hardtack used historically?
It kept well when dry, making it useful for long voyages and military rations where fresh food was not available.
What does hardtack taste like?
It is generally described as bland and very hard.
What are other names for hardtack?
Common names include ship’s biscuit, sea biscuit, pilot biscuit, and pilot bread.
Was hardtack really used by soldiers and sailors?
Yes. Historical sources describe it as a common ration for sailors and soldiers for centuries.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Hardtack
    Supports: Basic definition, ingredients, historical use, and common ration status.
  2. Merriam-Websterhttps://www.merriam-webster.com/dictionary/hardtack
    Supports: Dictionary definition as a hard biscuit or cracker.
  3. Cambridge Dictionaryhttps://dictionary.cambridge.org/dictionary/english/hardtack
    Supports: Definition as a biscuit made from flour and water, eaten especially by sailors and soldiers.
  4. Dictionary.comhttps://www.dictionary.com/browse/hardtack
    Supports: Alternative names and definition as a hard, saltless biscuit used aboard ships and for army rations.
  5. National Park Servicehttps://www.nps.gov/mana/learn/kidsyouth/hardtack-during-the-civil-war.htm
    Supports: Civil War use and ingredients.
  6. Texas Historical Commissionhttps://thc.texas.gov/blog/hardtack-original-mre
    Supports: Historical role as a long-lasting ration, preparation, and names.