When replacing a sweetener in a recipe, it is important to consider not only its mass but also its sweetness level. Different sweeteners can vary in intensity by several times, so a simple “gram for gram” substitution often leads to a distortion of flavor.
Conversion Principle
The main task is to maintain the same subjective sweetness that was intended in the recipe. For this, a conversion based on the sweetness coefficient is used.
Formula:
m2 = m1 × (B1 / B2)
- m1 — the amount of sweetener in the recipe;
- m2 — the new amount of sweetener;
- B1 — the sweetness level of the sweetener in the recipe;
- B2 — the sweetness level of your sweetener.
How to Determine Sweetness Level. The sweetness level is usually indicated by the manufacturer and compared to sugar:
- sugar = 1;
- erythritol ≈ 0.7;
- xylitol ≈ 1;
- stevia and sucralose — from 100 and above (depending on the form);
- monk fruit — can range from 100 to 250 and above;
- sweetener blends – how much sweeter they are than sugar is indicated on the packaging.
Example of Conversion. Let’s say:
- the recipe uses 22 g of sweetener;
- its sweetness is 5:1 (5 times sweeter than sugar);
- your sweetener is 20:1.
Calculation:
- sweetness ratio: 5 / 20 = 0.25;
- new amount: 22 × 0.25 = 5.5 g.
You will need approximately 5–6 g of your sweetener.
You can use the following calculator to convert the amount of sweetener:
Convert SweetenerPractical Nuances
- intense sweeteners often require mixing with fillers for volume;
- in keto desserts, the sweetener affects texture, moisture, and caramelization;
- it’s better to start with less and adjust the flavor if necessary;
- combinations of sweeteners provide a more stable and “clean” taste.
When Conversion Works Correctly:
- when replacing intense sweeteners (much sweeter than sugar);
- when sweetness is more important than volume;
- in creams, drinks, sauces.
When Problems May Arise:
- when replacing volumetric sweeteners (erythritol, allulose) with intense ones;
- in baking, where the sweetener affects the structure;
- if the sweetener gives a cooling effect or aftertaste.
Sources
- Beyond Sugar: A Holistic Review of Sweeteners and Their Role in Modern Nutrition
- Sweeteners: European Food Safety Authority Topic Overview
- Sucrose Replacement in High Ratio White Layer Cakes
- Sensory Characteristics and Relative Sweetness of Tagatose and Other Sweeteners
- Re-evaluation of Erythritol (E 968) as a Food Additive: European Food Safety Authority Scientific Opinion
