How Supermarkets Rewired The Planet

Key Concepts

Supermarkets, convenience, low prices, artificial winter (cold storage), food marketing, processed foods, supply chains, human exploitation (modern-day slavery), consumer responsibility, food co-ops, local food systems.

The Rise of the Supermarket

Before supermarkets, shopping was "disaggregated," requiring visits to butchers, general stores, and bakeries. Clarence Saunders' Piggly Wiggly in 1916 introduced the "self-serving store," cutting labor costs and offering customers freedom of choice. Michael Cullen in 1930 further revolutionized the concept by "supersizing" the store, reducing staff, and lowering prices based on volume. This transformed the shopping experience, consolidating everything into one trip and prioritizing convenience and low prices. Americans now spend 70% less of their household income on food compared to 1947, with greater product availability.

Artificial Winter: The Cold Chain

Maintaining year-round availability of produce like apples requires "artificial winter." Superfresh Growers in Yakima, Washington, uses controlled atmosphere (CA) storage, employing liquid nitrogen to reduce oxygen levels to 1.5% and storing apples at specific temperatures (e.g., Red Delicious at 32.5°F, Honeycrisp at 37-38°F). This process allows apples to be stored for over a year. Nicola Twilley describes this as "interspecies warfare" against bacteria and fungi. Carl von Linde's 19th-century mechanical refrigerator, initially for beer brewing, expanded to meat, dairy, produce, and frozen dinners, creating a "cold chain" from farm to fork. The U.S. has 5.5 billion cubic feet of artificial winter, consuming 8% of global electricity and contributing to climate change emissions.

Marketing and Processed Foods

American food companies spend $14 billion annually on advertising. The birth of modern food marketing is linked to cereal. John Harvey Kellogg created a bland cereal for dyspepsia, but his brother Will added sugar, leading to increased sales and a sibling rivalry. C.W. Post further emphasized marketing. Philip Morris, a tobacco company, acquired General Mills, Kraft, and Nabisco in the 1980s, applying tobacco marketing strategies to food. This has led to a prevalence of highly processed foods, contributing to obesity (1 billion people) and overweight (2.5 billion people) globally.

Shrimp and Modern-Day Slavery

Shrimp has become America's favorite seafood due to aquaculture advancements in Thailand in the 1990s. A bizarre discovery that cutting off a shrimp's eyes triggered reproduction led to increased production and lower prices. However, shrimp farming caused toxic damage in Thailand and other countries. Shrimp are carnivorous, requiring two pounds of wild-caught fish for every pound of shrimp. This led to indiscriminate fishing and human exploitation. Patima Tungpuchayakul and the Labor Protection Network (LPN) have exposed human trafficking in the Thai fishing industry, rescuing nearly 2000 people. Workers from Myanmar, Laos, Cambodia, and Thailand are tricked into slavery, facing violence, unpaid labor, and death. One rescued worker recounted witnessing shipmates killed and thrown overboard. Humanity United found similar abuses in supply chains for coffee, cattle, cotton, timber, palm oil, and sugar. An estimated 35 million people are enslaved globally.

Consumer Responsibility and Alternatives

Raj Patel argues that supermarkets shift responsibility to individual shoppers by offering choices like "local," "organic," or "fair trade," obscuring the consequences of their choices. He states, "You shouldn't have to choose dolphin or not, slavery or not … We shouldn't have slavery in our food system. Why are you being asked to make the choice? It's not fair." Supermarkets prioritize profit maximization over education. The Detroit People’s Food Co-Op, managed by Akil Talley, offers a hyper-local alternative, sourcing products from Detroit and Michigan. Member-owners decide what to carry, celebrating the supply chain and fostering connections between growers and consumers. This co-op aims to circulate dollars back into the community and create a more sustainable food system.

Conclusion

Supermarkets, while offering convenience and low prices, have hidden costs, including environmental impact, health consequences, and human exploitation. Consumers need to be aware of these costs and consider alternatives like local food systems and co-ops. Reshaping the food system requires not only changing the world but also reshaping ourselves and our consumption habits.