Whaling try-pots

Whaling try-pots were cast-iron kettles set into brick ovens aboard whaling ships. They served as the central equipment in rendering blubber at sea: after workers cut the blubber into portions, they heated it in the pots to extract oil. The apparatus joined shipboard labor to an industrial economy built on converting whales into saleable materials.

Design and place aboard ship

The try-pots stood on deck, where their brick ovens made them look oddly domestic, like a kitchen range or a blacksmith’s furnace. That resemblance carried an unsettling implication: the ship seemed to contain the beginnings of a house, but this was a workplace organized around processing a whale. The pots were part of a larger operation involving workers above and below deck, and they turned the deck into a site of sustained production.

Rendering and shipboard labor

Once the blubber had been cut into large portions, it was taken below to be divided into smaller pieces. Thin slices, called bible leaves, melted more quickly than the thicker horse pieces. They were then hauled back on deck and tipped into the try-pots. Rendering lasted for two days, with workers labouring in alternating six-hour shifts. The sequence connected cutting, carrying, and heating in a continuous process; the pots were not simply containers but the point at which prepared blubber became oil.

The labor was hazardous and exhausting. The deck could become slippery with oil, while workers also faced risks from heavy whale material, hot oil, and cutting tools. These dangers belonged to a system in which sailors’ work and the whale’s body were bound together: the ship’s operations depended on repeatedly handling and processing the animal, while the men had limited control over the conditions under which they worked.

Fuel, spectacle, and irony

The rendering fire was fed with slivers of blubber known as cracklings. As the whale supplied the fuel that consumed its own blubber, the process made the animal seem to burn by its own body. This practical arrangement carried an irony the narrative draws out: the whale was both the material being processed and the source of energy for its processing. At night, the flames illuminated the ship’s rigging and made the working vessel appear like a burning industrial structure moving through the dark ocean.

The pots thus mark a tension between ordinary technique and disturbing spectacle. Their function was economically precise, but their setting and fuel made the process difficult to regard as merely routine. The ship became a furnace at sea, and the equipment gave visible form to the conversion of animal life into industrial output.

From whale to commodity

Try-pots belonged to a wider chain of whaling products. Whale oil and other materials helped generate wealth on shore; in the account of New Bedford, the prosperity of prominent houses and gardens is set against the deaths of whales whose bodies supplied that economy. The kettles represent one consequential link in that exchange: work aboard the ship transformed blubber into a transportable product, carrying the consequences of capture from the ocean into markets and settlements.

The book also describes later factory ships with steel boilers and large storage tanks, where blubber was reduced to oil on a much greater industrial scale. Those later systems are not identified as try-pots, but they echo the same basic operation: processing the whale at sea and making its body yield marketable goods. Seen against that history, the try-pots are both specific pieces of shipboard equipment and a compact image of whaling’s larger industrial logic.