Kitchen know-how · 2 minute read
Breakfast cup to ml and US fluid ounces: Beeton's 1906 table
Beeton's 1906 breakfast cup of water or milk is about 284 ml or 9.6 US fluid ounces. Compare half and double amounts and the smaller teacup.
By TuneMyRecipe. Published .
A breakfastcupful of water or milk in Beeton’s 1906 London revision is half an Imperial pint, about 284 ml or 9.6 US fluid ounces. The same table’s teacup is half as large. Choosing an ordinary cup by its name could therefore change the liquid amount considerably.
A breakfast cup in milliliters and US fluid ounces
Page 127 of Mrs. Beeton’s Book of Household Management sets out both vessels. Read the fraction beside the name before reaching for modern equipment.
The source breakfast cup is half an Imperial pint; half and double that cup represent a quarter pint and a full pint.
| Breakfast-cup quantity | Metric | US fluid ounces |
|---|---|---|
| 1/2 breakfast cup | About 142 ml | About 4.8 US fl oz |
| 1 breakfast cup | About 284 ml | About 9.6 US fl oz |
| 2 breakfast cups | About 568 ml | About 19.2 US fl oz |
The comparisons use modern Imperial volume definitions and US fluid ounces, not Imperial fluid ounces. They are rounded comparisons for the book’s approximate table, not evidence that every historical breakfast cup had an identical capacity.
Within this table, a half breakfast cup and a full teacup represent the same liquid quantity. That relationship can help you follow a recipe’s divisions without switching between unrelated cup definitions.
A liquid cup doesn’t establish a weight
The page separates its liquid measures from ingredient-weight equivalents. Don’t treat a breakfast cup of flour, sugar or butter as 284 grams. The ingredient and how it fills the vessel still matter.
The book even supplies a separate heaped-fat entry. That is evidence about that ingredient and filling instruction, rather than permission to give every breakfast cup the same weight.
For a recipe from another author or edition, begin again with its own table. A surviving household breakfast cup may provide a working capacity, but this 1906 definition doesn’t identify it by name alone.
See old recipe measurements for how to distinguish an author’s measure from a chosen modern substitute. If you later need a weight estimate, the cups-to-grams converter uses supported US measures and specified ingredient forms, not an automatic interpretation of historical breakfast cups or their filling instructions.
Source
Mrs. Beeton’s Book of Household Management, London, new revised edition, 1906, pp. 126–127. Scan.
- NIST, SI conversion factors, modern nominal unit factors used for the rounded comparisons.