Nobody timed the recipe

“Total time: 45 minutes.” That reads like a measurement. It is not one, and you can prove it without timing a single recipe — just look at which numbers appear.

In 343 recipes collected from publishers, 77% of stated total times are a multiple of five. If the last digit carried real information you would expect 20%.

In one paragraph

In 343 recipes collected from outside publishers (project-authored recipes excluded), 77% of stated total cook times are a multiple of five minutes — against the 20% you would expect if the last digit carried information, a 3.9× excess. Only 89 distinct time values appear at all, and 59% of recipes sit on just ten of them. This is digit heaping — the statistical signature of an estimate, not a measurement. The times are still useful as estimates from someone who has cooked the dish; the minute-level precision is decorative.

Stated total time at one-minute resolution. A measured quantity would make a smooth hill. This is a comb.

The shape of an estimate

This pattern has a name. Demographers call it digit heaping, and they see it wherever people report a number they did not measure — age, income, how many cigarettes a day. The teeth are where human attention rounds.

times land on	observed	expected if measured	ratio
a multiple of 5	77.3%	20.0%	3.9×
a multiple of 10	35.6%	10.0%	3.6×
a multiple of 15	33.5%	6.7%	5.0×
a multiple of 30	14.0%	3.3%	4.2×
a multiple of 60	3.8%	1.7%	2.3×

There are 89 distinct stated times in the sample, and 59% of all recipes sit on just ten of them. The most common are the ones you would guess:

stated time	recipes
15 minutes	39
25 minutes	29
40 minutes	28
30 minutes	25
35 minutes	23
45 minutes	17
50 minutes	16
27 minutes	9

None of this makes the times useless — an estimate from someone who has cooked the dish is worth having. It means the precision is decorative. A recipe claiming 40 minutes and one claiming 45 are not telling you about a five-minute difference; they are telling you “about three quarters of an hour” in two different moods.

Honest limitations

This is scoped to recipes collected from outside publishers — the project-authored portion of the corpus is excluded, because those times were generated to a schema rather than written by a person, and blending the two would measure our pipeline instead of recipe writing. The exclusion is recorded in the results file.
n = 343, which is a real sample but not a large one. The effect is big enough that sampling noise is not a plausible explanation, but a different collection of publishers could shift the exact share.
Times over ten hours are excluded as cures and ferments rather than cook times.
The uniform baseline assumes a last digit with no structure. Real cook times are not uniform — but no plausible distribution of actual durations produces teeth this regular at exactly the multiples of five.

The data

Every number on this page is a deterministic measurement over the same recipe corpus — nothing here was estimated or embellished. Want to check the work, or run your own analysis? A 250-dish sample of the corpus — ingredients, 18-note flavor profiles, timing, macros — is free to download.

Get the dataset

Cite this

Palate, “Nobody timed the recipe,” https://palate.kitchen/instrument/nobody-timed-the-recipe — include the date you accessed it.

The measurements on this page are free to quote with attribution to Palate. The downloadable 250-dish sample dataset on /data is licensed CC BY-NC 4.0.