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.
Recipe scaler
Yield factorPan scaler
Surface areaBaker’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.
| Measure | Working value | System | Professional note |
|---|---|---|---|
| US teaspoon | 4.9289 mL exact · 5 mL kitchen | US customary | NIST culinary guidance rounds to 5 mL. |
| US tablespoon | 14.7868 mL exact · 15 mL kitchen | US customary | 3 US teaspoons. |
| US fluid ounce | 29.5735 mL exact · 30 mL kitchen | US customary | Not the same as an imperial fluid ounce. |
| US cup | 236.588 mL exact · 240 mL kitchen | US customary | NIST metric-kitchen equivalence uses 240 mL. |
| Metric cup | 250 mL | Metric culinary convention | Common in Australia and many metric recipes. |
| Australian tablespoon | 20 mL | Australian metric convention | A major source of recipe error when translated as 15 mL. |
| Imperial fluid ounce | 28.4131 mL | Imperial | Smaller than the US fluid ounce. |
| Imperial pint | 568.261 mL | Imperial | 20 imperial fluid ounces; US pint is 473.176 mL. |
| US pint | 473.176 mL | US customary | 16 US fluid ounces. |
| US gallon | 3.78541 L | US customary | Smaller 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.
| Ingredient | Reference volume | Reference weight | Notes |
|---|---|---|---|
| All-purpose flour | 1 US cup | 120 g | Weighing is strongly preferred; packing changes volume dramatically. |
| Bread flour | 1 US cup | 120 g | Reference value. |
| Almond flour | 1 US cup | 96 g | Fine almond flour; meal may differ. |
| Brown sugar, packed | 1 US cup | 213 g | Light or dark. |
| Confectioners’ / icing sugar | 1 US cup | 113 g | Unsifted. |
| Superfine / caster sugar | 1 US cup | 190 g | Reference for superfine sugar. |
| Butter | 1/2 US cup · 8 tbsp | 113 g | One US stick. |
| Heavy / light cream | 1 US cup | 227 g | Recipe-reference value; fat percentage differs by market. |
| Fresh milk | 1 US cup | 227 g | Recipe-reference value. |
| Sour cream | 1 US cup | 227 g | Crème fraîche reference: 113 g per 1/2 cup. |
| Unsweetened cocoa | 1/2 US cup | 42 g | Natural/Dutch density can vary. |
| Cornstarch | 1/4 US cup | 28 g | In the UK, “cornflour” commonly means cornstarch. |
| Honey | 1 US tbsp | 21 g | Temperature and water content affect flow, not nominal mass reference. |
| Maple syrup | 1/2 US cup | 156 g | Reference value. |
| Olive oil | 1/4 US cup | 50 g | Reference value. |
| Vegetable oil | 1 US cup | 198 g | Different oils vary slightly in density. |
| Large egg, cracked | 1 | 50 g | Useful formula reference; shell-egg size labels vary by region. |
| Large egg white | 1 | 30–35 g | Weigh when precision matters. |
| Large egg yolk | 1 | 14 g | Weigh when precision matters. |
| Long-grain rice, dry | 1/2 US cup | 99 g | Variety and grain dimensions affect packing. |
| Old-fashioned oats | 1 US cup | 89 g | Some branded rolled oats use different reference weights. |
| Parmesan, grated | 1/2 US cup | 50 g | Grate size materially affects volume. |
| Tomato paste | 2 US tbsp | 29 g | Reference value. |
| Garlic, minced | 2 US tbsp | 28 g | Cut 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 bakesAlternative: 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 useAlternative: 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 dependentAlternative: 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
SaucesAlternative: 1 tbsp cornstarch ≈ 2 tbsp all-purpose flour. Consequence: flour gives a more opaque sauce and generally requires longer cooking.
Cake flour
ApproximationAlternative: 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 mattersRule: 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 directAlternative: 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 equivalentRule: 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.
| Food | Minimum internal temperature | Rest / note |
|---|---|---|
| Beef, pork, veal & lamb — steaks, chops, roasts | 145°F · 62.8°C | Rest at least 3 minutes. |
| Ground beef, pork, veal & lamb | 160°F · 71.1°C | No rest time specified in USDA minimum chart. |
| All poultry, including ground poultry | 165°F · 73.9°C | Measure in the appropriate thickest location. |
| Fish & shellfish | 145°F · 62.8°C | USDA minimum reference. |
| Egg dishes | 160°F · 71.1°C | Use pasteurized eggs when a validated process requires lower-temperature service. |
| Leftovers & casseroles | 165°F · 73.9°C | Reheat 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 / Australia | US usage | Important note |
|---|---|---|
| Coriander leaves | Cilantro | In US usage, “coriander” more often refers to the seed. |
| Rocket | Arugula | Same leafy green. |
| Aubergine | Eggplant | Same vegetable. |
| Courgette | Zucchini | Same summer squash. |
| Caster sugar | Superfine sugar | Finer crystal than standard granulated sugar. |
| Icing sugar | Confectioners’ / powdered sugar | Commercial starch content can vary by brand. |
| Plain flour | All-purpose flour | Protein specifications are not identical across mills/countries. |
| Strong flour | Bread flour | Compare protein %, not just the name. |
| Bicarbonate of soda | Baking soda | Sodium bicarbonate. |
| Cornflour (UK) | Cornstarch | US “corn flour” can mean finely milled whole corn—very different. |
| Double cream | No exact US equivalent | Generally richer than US heavy cream; do not assume identical fat percentage. |
| Greaseproof / baking parchment | Parchment paper | Wax 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.
Fleur de Sel vs Sea Salt vs Kosher Salt
Texture, crystal density, finishing use and why professional salt formulas belong in grams.
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.
