# Master Guide for Recipe Scaling and Converter Logic
Ingredient scaling is one of the most critical yet error-prone tasks in professional kitchens. It's not just about multiplying numbers; it's about understanding how food chemistry and physics react to changes in volume and surface area. x1.75 Factor 4 to 7 per.
75% Spice Adjustment
0% Time Scaling
100g Reference Base
# Differences Between Linear and Contextual Scaling
Mathematical Linear Scaling
Direct multiplication of all values by the calculated conversion factor.
- Perfect for flour and base liquids
- Ideal for cold precision pastry
- Works well for small shifts (x2, x0.5)
- Easy to calculate automatically
Chef's Contextual Scaling
Adjusting proportions based on flavor saturation and evaporation.
- Prevents excess salt and spice levels
- Considers evaporation surface area
- Adjusts yeast based on friction heat
- Requires professional culinary judgment
# Common Conversion Factors by Serving Size
| From Servings | To Servings | Factor (CF) | Adjustment Difficulty |
|---|---|---|---|
| 2 persons | 4 persons | x 2.0 | Low (Linear) |
| 4 persons | 6 persons | x 1.5 | Low (Linear) |
| 4 persons | 10 persons | x 2.5 | Medium (Watch spices) |
| 4 persons | 25 persons | x 6.25 | High (Contextual) |
Common Pitfalls When Doubling a Recipe
If you notice flavors becoming too intense after scaling—especially with chili or salt—reduce the specific scale for those ingredients to 75%. Never double the cooking time; internal temperature is reached based on thickness, not total batch weight.
# Standardization Terminology Glossary
- Conversion Factor
- The number used to multiply ingredients: Desired Quantity / Original Quantity.
- Cooking Shrinkage
- Weight loss due to evaporation or fat loss. This does not scale linearly with batch size.
- Gross vs Net Weight
- Weight before and after cleaning. Always scale based on the recipe's specified net weight.
- Batch Yield
- The total amount of finished product after scaling and cooking processes.