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Diet of the Ancient Mariner

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« on: March 19, 2018, 01:15:11 pm »

  Tall ship Elissa moored in Port Galveston, Texas
Researchers stored 17th-century foodstuffs aboard the 19th-century tall ship Elissa as part of an investigation into how well food preservation worked during the age of discovery. Photo by age fotostock/Alamy Stock Photo

Diet of the Ancient Mariner
An unprecedented archaeology experiment is putting historical shipboard food and drink to the test.

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 by Jeremy Hsu

 March 14th, 2018 | 700 words, about 3 minutes

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In 1619, a hurricane sank the English merchant ship Warwick in Bermuda’s Castle Harbor. The struggling settlers of Jamestown, Virginia, were desperately awaiting the shipload of fresh supplies, and keenly felt the loss. Almost 400 years later, artifacts from the wreck are helping archaeologist Grace Tsai uncover if unrefrigerated food and drink remained edible and nutritious during long sea voyages.

Since 2012, Tsai, a doctoral candidate in nautical archaeology at Texas A&M University, has been studying archaeological records of provisions from three different shipwrecks from the 16th and 17th centuries and analyzing shipboard diets based on modern nutritional guidelines.

Now, Tsai and her colleagues are going one step further: for two months, they stored period-accurate provisions aboard the closest thing to the Warwick they could find—the 19th-century tall ship Elissa, docked in Galveston, Texas.

“The whole premise is to see how things age aboard ships,” Tsai says. Researchers, including her, have typically studied how to prepare food based on historical recipes, “but nobody has been testing how well they lasted on a transatlantic voyage.”

The two-month shipboard study took place from August to October 2017, and included its own hurricane scare, when Harvey swept through just a week into the experiment.

Now, Tsai and her colleagues are back in the lab, analyzing the provisions’ surviving nutritional value and investigating the microbes that grew on them. Chemical analyses could even reveal any remaining—or acquired—flavors.

Yet before they could get to this point, Tsai and her team had to make all the foodstuffs that would have sustained a 17th-century English sailor, such as salted meats, peas, oatmeal, tough ship biscuits, beer, wine, and a barrel of natural spring water. The project also included a variety of heirloom rice, which was more common in the diets of Spanish or Portuguese sailors.

To better understand the salted meats, Tsai traveled to Bermuda to study animal bones recovered from the Warwick’s wreck. Her examination of butcher marks on cattle bones helped her identify the best size to cut beef to enable preservation. The team also imported sea salt from Guérande, France, a region that has been producing salt for more than 1,000 years, which remains a chefs’ favorite.

Previously, scientists have tried to re-create food and drink from various historical periods. But independent experts agree that this project is an unprecedented experiment in maritime archaeology.

“[The experiment] would certainly be the closest we could come to replicating the stowage conditions of a sailing ship in that environment,” says Chuck Meide, director of the St. Augustine Lighthouse Archaeological Maritime Program in Florida.

James Delgado, a maritime archaeologist and senior vice president at SEARCH, an independent archaeological consultancy in Florida, agrees. “While we’ve studied food waste and food based on archaeological remains, this is the first time, as far as I know, that someone has done experimental archaeology with shipboard provisions from that period.”

After their stint in the Elissa’s hold, many of the provisions still seem edible. For safety reasons, nobody will actually be tasting the experimental results, but the baked ship biscuits are in the best shape by far, a testament to their legendary hardiness. The salted beef, however, has taken on a pinkish center resembling prosciutto. It has a pungent smell, says Tsai, though it isn’t rotten.

A big exception is the natural spring water, which has turned cloudy with greenish bits and “smelled pretty disgusting,” Tsai says. Sailors may have preferred quenching their thirst with beer and wine, which remained more palatable. Still, a surprising amount of lingering yeast fermentation and carbonation caused the beer barrel to leak and grow mold.

Yet the biggest surprise came from the diversity of microbes found in some of the food. Early genomic sequencing analyses, mostly from the salted beef, suggest that many of the bacteria are neither illness-causing pathogens nor beneficial probiotics—most seem to be relatively neutral. The unexpected microbial bounty, however, has forced the researchers to expand their genomic sequencing efforts.

Even though no one is eating the food and drink stored aboard the Elissa, the team is organizing a fundraising event aboard the ship later this month to sample beer based on the historical recipe.

The event illustrates the project’s benefits beyond the research findings by getting more people interested in history and archaeology, says Meide. “There is something compelling about literally re-creating the past in order to learn about it.”

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Author bio

Jeremy Hsu is a Brooklyn-based journalist who covers science and technology issues for publications such as Scientific American, Discover Magazine, Wired, IEEE Spectrum, and Undark Magazine. His recent focus has been on artificial intelligence techniques such as deep learning and the impact of automation on society. But he also maintains a strong interest in biodiversity conservation issues, space exploration technologies, and military history.

Tags and Categories
Technology & Engineering
 Geographic region:North America
 Oceanographic Region:Atlantic Ocean
 Scientific Field/Discipline:Biology,

Cite this Article:

Cite this Article: Jeremy Hsu “Diet of the Ancient Mariner,” Hakai Magazine, March 14th, 2018, accessed March 19th, 2018,

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