The sources, series IDs and steps, so anyone can reproduce them
Every figure in this guide comes from free public data and a handful of simple steps. Here is the full recipe.
Price per pound, 1980 to 2026
The source is BLS Average Price Data series APU0000717311, "Coffee, 100%, ground roast, all sizes, per lb. (453.6 gm)," U.S. city average, not seasonally adjusted. The item code is listed in the agency's ap.item file, and monthly values come from its flat data files. Each annual price is a simple average of that year's available monthly prices. Values for 1980 through 1994 were read from the Federal Reserve Bank of St. Louis mirror of the same series, which matches the BLS file exactly for every later year checked.
Price per pound, 1969 to 1979
BLS's current series begins in January 1980. For earlier years, this guide uses the BLS estimated average retail price for coffee in a vacuum-packed can, as reprinted in the Statistical Abstract of the United States: Table 572 of the 1972 edition for 1969, and Table 800 of the 1979 edition for 1970 through 1977. Both editions are scanned pages; every coffee figure was read off the page image and checked by eye.
For 1978 and 1979, when no annual figure was published, the 1977 price is carried forward with the CPI index for roasted coffee, series CUUR0000SS17031.
Gap years after 1980
The BLS series has holes: two months of 2007, all of 2008, the first 11 months of 2009, six months of 2018, the first nine months of 2019, and October 2025, when data was not collected during the 2025 lapse in federal appropriations. Years with at least six months of data use the months available. For 2008, 2009 and 2019, the nearest complete year is carried with the roasted-coffee CPI index.
Inflation adjustment
Cup prices are converted to September 2026 dollars with the CPI for All Urban Consumers, all items, series CUUR0000SA0. Each year's index is the average of its 12 monthly values, with the annual-average rows excluded, and September 2026 (336.940) is the base. As a cross-check on the coffee trend, this guide also tracked the CPI coffee index, series CUUR0000SEFP01, from the BLS flat file cu.data.11.USFoodBeverage. That index rose about elevenfold from 1969 to 2026, close to the roughly twelvefold rise in the per-pound price.
Price per cup
The National Coffee Association's brewing guidance calls for 1 to 2 tablespoons of ground coffee per 6 ounces of water. This guide uses the top of that range, two level tablespoons, which is about 10 grams. A pound (453.6 grams) therefore makes about 45 cups. The same ratio is used for every year, so the comparisons hold even if your own scoop is bigger or smaller.
Minutes of work
Seconds of work per cup equal the cup price divided by the federal minimum wage, times 3,600. When the minimum wage changed partway through a year, the rate in force each month is averaged.