The Lello Culinary Reference

Precision for the serious kitchen.

International measurements, ingredient weights, substitutions, scaling tools and safety standards—organized for cooks who work across systems, countries and disciplines.

Reference Edition 01 · August 2026

Working Tools

The precision desk

Fast calculations for the work that crosses borders: units, yields, pans and baker’s percentages. Exact physical conversions are separated from culinary working conventions.

Universal converter

Exact where defined

Recipe scaler

Yield factor

Pan scaler

Surface area
Scale ingredients by the area factor. Pan depth, batter rise, material and bake time still require judgment.

Baker’s percentage

Flour = 100%

Across Systems

International measures

A “cup” or “tablespoon” is not always the same thing. Use grams and milliliters for serious production; use the table below when translating a source recipe.

MeasureWorking valueSystemProfessional note
US teaspoon4.9289 mL exact · 5 mL kitchenUS customaryNIST culinary guidance rounds to 5 mL.
US tablespoon14.7868 mL exact · 15 mL kitchenUS customary3 US teaspoons.
US fluid ounce29.5735 mL exact · 30 mL kitchenUS customaryNot the same as an imperial fluid ounce.
US cup236.588 mL exact · 240 mL kitchenUS customaryNIST metric-kitchen equivalence uses 240 mL.
Metric cup250 mLMetric culinary conventionCommon in Australia and many metric recipes.
Australian tablespoon20 mLAustralian metric conventionA major source of recipe error when translated as 15 mL.
Imperial fluid ounce28.4131 mLImperialSmaller than the US fluid ounce.
Imperial pint568.261 mLImperial20 imperial fluid ounces; US pint is 473.176 mL.
US pint473.176 mLUS customary16 US fluid ounces.
US gallon3.78541 LUS customarySmaller than an imperial gallon (4.54609 L).

Volume to Weight

Ingredient weight index

Volume-to-weight conversion is ingredient-specific and technique-specific. These are recipe-reference values, not universal physical constants. For reproducible work, weigh the ingredient specified by the original formula whenever possible.

IngredientReference volumeReference weightNotes
All-purpose flour1 US cup120 gWeighing is strongly preferred; packing changes volume dramatically.
Bread flour1 US cup120 gReference value.
Almond flour1 US cup96 gFine almond flour; meal may differ.
Brown sugar, packed1 US cup213 gLight or dark.
Confectioners’ / icing sugar1 US cup113 gUnsifted.
Superfine / caster sugar1 US cup190 gReference for superfine sugar.
Butter1/2 US cup · 8 tbsp113 gOne US stick.
Heavy / light cream1 US cup227 gRecipe-reference value; fat percentage differs by market.
Fresh milk1 US cup227 gRecipe-reference value.
Sour cream1 US cup227 gCrème fraîche reference: 113 g per 1/2 cup.
Unsweetened cocoa1/2 US cup42 gNatural/Dutch density can vary.
Cornstarch1/4 US cup28 gIn the UK, “cornflour” commonly means cornstarch.
Honey1 US tbsp21 gTemperature and water content affect flow, not nominal mass reference.
Maple syrup1/2 US cup156 gReference value.
Olive oil1/4 US cup50 gReference value.
Vegetable oil1 US cup198 gDifferent oils vary slightly in density.
Large egg, cracked150 gUseful formula reference; shell-egg size labels vary by region.
Large egg white130–35 gWeigh when precision matters.
Large egg yolk114 gWeigh when precision matters.
Long-grain rice, dry1/2 US cup99 gVariety and grain dimensions affect packing.
Old-fashioned oats1 US cup89 gSome branded rolled oats use different reference weights.
Parmesan, grated1/2 US cup50 gGrate size materially affects volume.
Tomato paste2 US tbsp29 gReference value.
Garlic, minced2 US tbsp28 gCut size changes packing.

Function First

Substitutions with consequences

A serious substitution table should explain what changes—not pretend two ingredients are identical. Use these as controlled alternatives, then adjust acidity, water, fat, sweetness or structure as the formula requires.

Buttermilk

Good in many bakes

Alternative: 1 cup plain yogurt, or 1 tbsp vinegar/lemon juice plus milk to make 1 cup. Consequence: flavor, viscosity and acidity differ; formulas relying on baking soda need sufficient acid.

Heavy cream

Cooking use

Alternative: 3/4 cup milk + 1/3 cup butter for roughly 1 cup. Consequence: useful for sauces/baking, but it will not behave like commercial heavy cream for whipping.

Flour as thickener

Technique dependent

Alternative: 1 tbsp flour ≈ 1/2 tbsp cornstarch, potato starch, rice starch or arrowroot. Consequence: gloss, opacity, freeze/thaw behavior and acid tolerance differ by starch.

Cornstarch

Sauces

Alternative: 1 tbsp cornstarch ≈ 2 tbsp all-purpose flour. Consequence: flour gives a more opaque sauce and generally requires longer cooking.

Cake flour

Approximation

Alternative: for a 1-cup target, use 3/4 cup + 2 tbsp all-purpose flour (105 g) plus 2 tbsp cornstarch (14 g). Consequence: this approximates lower protein behavior; it is not chemically identical to milled cake flour.

Natural vs Dutch cocoa

Leavening matters

Rule: natural cocoa contributes acidity; Dutch-process is less acidic. Consequence: in formulas driven by baking soda, swapping cocoa styles can alter rise, color and flavor. With baking powder-dominant formulas, interchange is often more forgiving.

Milk

Often direct

Alternative: lactose-free cow’s milk can generally substitute directly. Plant milks can work in many applications. Consequence: protein, fat, sweetness, browning and flavor can shift substantially.

Butter ↔ oil

Not equivalent

Rule: butter contains water and milk solids; oil is essentially all fat. Consequence: tenderness, spread, aeration, browning and flavor change. Prefer formula-specific conversion rather than a universal swap.

Small Ingredients, Large Errors

Eggs & salt across markets

Two of the most common sources of international recipe drift. For formula work, weigh cracked egg and salt rather than relying only on labels or spoon volume.

EU eggs

XL: ≥73 g
L: ≥63 to <73 g
M: ≥53 to <63 g
S: <53 g
Official Class A shell-weight classes.

US eggs

USDA classes are based on minimum net weight per dozen: Jumbo 30 oz, XL 27 oz, Large 24 oz, Medium 21 oz, Small 18 oz.
A “large” shell egg therefore does not map perfectly to EU “large.”

Formula egg

A useful baking reference is 50 g for one large cracked egg, with approximately 30–35 g white and 14 g yolk. For pastry, custards and scaled production, weigh the egg mass.

Diamond Crystal kosher

1 tbsp ≈ 8 g in the cited baking reference. Crystal geometry creates a very low spoon-density compared with other salts.

Morton kosher

1 tbsp ≈ 16 g in the same reference—about twice the spoon-weight of Diamond Crystal. Do not substitute spoon-for-spoon.

Table salt

1 tbsp ≈ 18 g in the cited reference. For professional seasoning formulas, use percentage by ingredient weight and verify the salt actually in your kitchen.

Safety Baseline

Minimum internal temperatures

These are U.S. food-safety minimums—not culinary doneness targets. Professional kitchens should also follow their local food code, HACCP plan, approved reduced-oxygen/sous-vide procedures and establishment-specific controls.

FoodMinimum internal temperatureRest / note
Beef, pork, veal & lamb — steaks, chops, roasts145°F · 62.8°CRest at least 3 minutes.
Ground beef, pork, veal & lamb160°F · 71.1°CNo rest time specified in USDA minimum chart.
All poultry, including ground poultry165°F · 73.9°CMeasure in the appropriate thickest location.
Fish & shellfish145°F · 62.8°CUSDA minimum reference.
Egg dishes160°F · 71.1°CUse pasteurized eggs when a validated process requires lower-temperature service.
Leftovers & casseroles165°F · 73.9°CReheat thoroughly.

Translation Without Guesswork

Kitchen language across borders

Regional names can hide meaningful differences. This quick lexicon is designed to prevent the most common misreads in British, European, Australian and American recipes.

UK / Europe / AustraliaUS usageImportant note
Coriander leavesCilantroIn US usage, “coriander” more often refers to the seed.
RocketArugulaSame leafy green.
AubergineEggplantSame vegetable.
CourgetteZucchiniSame summer squash.
Caster sugarSuperfine sugarFiner crystal than standard granulated sugar.
Icing sugarConfectioners’ / powdered sugarCommercial starch content can vary by brand.
Plain flourAll-purpose flourProtein specifications are not identical across mills/countries.
Strong flourBread flourCompare protein %, not just the name.
Bicarbonate of sodaBaking sodaSodium bicarbonate.
Cornflour (UK)CornstarchUS “corn flour” can mean finely milled whole corn—very different.
Double creamNo exact US equivalentGenerally richer than US heavy cream; do not assume identical fat percentage.
Greaseproof / baking parchmentParchment paperWax paper is not a heat-equivalent substitute.

From The Lello Guides

Read the subject in context

The Reference is designed for quick working answers. The Lello Guides explain the judgment behind the numbers and connect them to the pantry.

U.S. & European Measurements

Why cups, tablespoons and ingredient weights need more than a single conversion table.

Read the guide →

Fleur de Sel vs Sea Salt vs Kosher Salt

Texture, crystal density, finishing use and why professional salt formulas belong in grams.

Read the guide →

Reference Standard

How this reference is built

The goal is not to create another casual conversion chart. The Lello Culinary Reference separates exact unit definitions, rounded kitchen conventions, empirical ingredient weights, regulatory safety minima and technique-dependent substitutions.

  • Physical unit conversions use recognized standards and explicit system labels.
  • Ingredient cup-to-gram values are treated as tested recipe references, never as universal density laws.
  • Regional measures that differ—especially cups, tablespoons, fluid ounces and egg classes—are called out rather than normalized silently.
  • Substitutions explain functional consequences and are never presented as chemically identical.
  • Safety information is kept separate from preferred doneness and updated against official sources.

Culinary reference only. Ingredient composition, equipment, altitude, water activity, local regulation and process controls can materially change results. For regulated food production, food safety plans and specialized processes, use the applicable local authority and validated establishment procedures.

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