Sources behind the measurements

King Arthur Baking: ingredient weights

The Ingredient Weight Chart provides published weights for named ingredients and stated source quantities. BatchLadle keeps those original relationships with their ingredient entries. A source cup remains a source cup when its physical volume has not been established by the consulted material.

The How to Measure Flour guide and Recipe Success Guide add context about filling, leveling, preparation, and recipe conventions. They help determine whether the source relationship matches a recipe. They do not turn every differently prepared ingredient into the same measurement.

Women’s Weekly Food: defined kitchen cup references

The cup-and-ingredient-weight guide explicitly describes a 250 mL cup and level measures. Where the ingredient and preparation match, its stated weight and volume can support an approximate mass–volume relationship.

The guide distinguishes coarsely and finely chopped almonds, for example. BatchLadle preserves these as separate reference states under chopped almonds. A reference from this publisher is presented separately from a King Arthur reference rather than blended into an unexplained average.

Publisher recipes as supporting references

Women’s Weekly Food’s measurement guide defines a 250 mL cup, a 20 mL tablespoon, and a 5 mL teaspoon. Selected publisher recipes add ingredient-specific evidence for chopped walnuts, instant dried yeast, and the identity of plain all-purpose flour.

Only the relevant factual relationship is used. A reference from one recipe does not import the rest of that recipe or establish a general density for every preparation. The publisher’s 20 mL tablespoon remains distinct from BatchLadle’s 15 mL metric tablespoon setting.

Doves Farm: an explicit 240 mL publisher cup

The selected Doves Farm chart defines its cup as 240 mL. BatchLadle retains that explicit volume and identifies it as the publisher’s cup, even though the chart uses a US-cup label.

That volume is different from the exact 236.5882365 mL US customary cup. The chart also leaves the filling method unspecified for the selected records. The tool preserves both facts instead of turning the publisher’s label into a different unit definition.

FAO/INFOODS: reported density records

The FAO/INFOODS Density Database, Version 2.0, is a published compilation. BatchLadle uses selected entries from its mass-density column in grams per millilitre and keeps the underlying bibliography code and available conditions with each record.

The database also contains specific-gravity information, which is not treated as interchangeable with a reported g/mL density. Source review here means checking the selected published entry, column, and scope; it does not mean repeating the original laboratory work.

Dr. Oetker: product-specific spoon references

Selected Dr. Oetker product pages and matching recipes supply evidence for a baking-powder sachet and a bicarbonate-of-soda sachet, including level-measure descriptions and relevant teaspoon relationships.

These references remain specific to the named products. Differing rounded spoon amounts in other recipes are not averaged into one universal density, and a sachet reference does not establish the same weight for every brand.

NIST: unit relationships and kitchen approximations

Appendix C of the 2026 NIST Handbook 44 documents the unit relationships used to derive the exact US customary cup, tablespoon, and teaspoon volumes in this tool. These are unit definitions, not measurements of the foods in the directory.

NIST’s cooking-measurement-equivalencies page provides approximate kitchen equivalents, including a 240 mL cup. BatchLadle identifies that approximation explicitly. It is useful context, but it does not replace the exact customary definitions or define a publisher’s otherwise unspecified source cup.

King Arthur Baking: baker’s percentages

The Baker’s Percentage reference explains expressing ingredient weights relative to the flour basis. BatchLadle uses that convention and presents its own worked examples and explicit starter accounting.

The reference supports the percentage method. It does not establish that a particular formula has been tested, that a fermentation schedule will work, or that another ingredient’s entire mass should count as water.

What to check in an ingredient reference

Open the reference selected by the converter before accepting a mass–volume result. Compare the complete ingredient description and measuring method with your recipe. Inspect whether the source supplies a physical volume or only a named measure.

• Publisher and original source URL.
• Original quantity, unit, and stated weight.
• Ingredient preparation or measuring state.
• Physical volume definition, where established.
• Date the source was checked.
• Limitations relevant to the requested conversion.

Why one ingredient can have several references

A different value may reflect another method, preparation, or product rather than an arithmetic error. Separate references let you choose the relationship that fits your recipe without concealing those differences.

Changing a display unit should not silently change the reference. If the selected reference does not support the requested conversion, the tool should explain the limitation and retain the original quantity. A missing relationship is more useful when it is visible than when it is filled by a guess.

Review and corrections

The checked date records when the cited material was inspected. It does not claim laboratory testing, publisher endorsement, or permanent accuracy. Source pages and publisher guidance can change.

If you find an inconsistent value, keep the ingredient name, selected reference, state, input, and source URL together. The Contact page explains how to prepare a useful correction report. Attribution identifies provenance; it does not grant permission to copy an entire source database or article.