Yeast-town
The Caves of SteelYeast-town is the unofficial name for a vast yeast-producing region west of New York City, a landscape whose farms and industries help sustain Earth’s population. It enters the narrative both as a critical economic infrastructure and as a place that Baley encounters through the distinctive smell of raw yeast, which carries him back to childhood.
Definition and Setting
Yeast-town does not appear under that name in gazetteers or on official maps. In postal usage, its territory belongs to the boroughs of Newark, New Brunswick, and Trenton; popular speech gathers them under a name that evokes their dominant industry. The region stretches across what was once Medieval New Jersey, with residential areas concentrated especially in Newark Center and Trenton Center, while most of its land is occupied by layered yeast farms.
The farms are part of a broad production system rather than an isolated agricultural landscape. Wood and coarse cellulose are brought from the forests of the Alleghenies and processed into glucose; niter and phosphate rock supply important additives, while chemical laboratories provide organic materials. The chain of raw materials and processing converges on the same product: yeast.
Economic and Social Importance
The scale of this production shapes the lives of the city’s workforce. One fifth of the City’s population works in the yeast farms, and another fifth works in related industries. Yeast-town is thus not merely a regional label but the center of an economic network on which a large share of urban employment depends.
Its importance is also measured in the consequences of failure. Without yeast, six of Earth’s eight billion people would starve within a year. Baley feels cold at the thought: the magnitude of this dependence has become newly immediate to him, though the possibility had existed just as fully three days earlier. The contrast makes the region’s ordinary industrial processes appear precarious as well as indispensable.
Baley’s Memories and Arrival
As Baley travels through the region, the aroma of Yeast-town grows stronger and more pervasive. Unlike Jessie, who finds it unpleasant, he rather likes it because it carries pleasant associations. The smell of raw yeast takes him more than three decades back, to age ten and visits to his uncle Boris, a yeast farmer.
Those visits are remembered through illicit sweets: small, chocolate-like cookies filled with sweet liquid and hard candies shaped like cats and dogs. Young Baley knew his uncle should not have been giving them away. He ate them quickly in a corner, with his back turned toward the room, afraid of being caught; the secrecy made them taste better. Boris later died in an accident. Baley once imagined that his uncle had been arrested for smuggling yeast and feared that he too might be arrested and executed. Years afterward, he searched police files and learned that Boris had fallen beneath the treads of a transport. The discovery ended the romantic story, but not its sensory hold: a whiff of raw yeast could still briefly bring the old myth back.
The journey also establishes Yeast-town as a concrete landscape. Baley and R. Daneel Olivaw leave the motorway by an exit on the Newark outskirts and move along thinly populated avenues flanked by featureless blocks of farms. The open, sparsely inhabited setting contrasts with the dense urban world associated with Baley, while the farms’ unremarkable appearance conceals their planetary importance.
Narrative Significance
Yeast-town brings together industrial scale and intimate memory. Its production supports billions, yet Baley’s personal connection to it is first registered not through statistics or maps but through smell, sweets, and a childhood fear whose factual basis he later corrected. The region’s economic reality and his remembered romance coexist: knowledge can disprove the story of Boris’s arrest, but it cannot prevent the sensory cue from reviving it.
The passage also turns travel through a seemingly plain industrial district into a measure of changed awareness. Baley has passed through a world whose dependence on yeast was already real, but only now considers what its loss would mean. Yeast-town’s significance therefore lies in both its material function and the sudden recognition of the human vulnerability that function supports.

