Understanding the difference between pure stevia and stevia blends
Stevia is a natural sweetener derived from the leaves of the Stevia rebaudiana plant, which is native to South America. The sweetness comes from compounds called steviol glycosides, which are up to 400 times sweeter than sugar. Because these compounds are so intensely sweet, only a tiny amount is needed for sweetening, which presents a challenge for manufacturers creating a consumer-friendly product.
Pure, unblended stevia extracts come in highly concentrated liquid or powdered forms. They contain only the purified stevia leaf extract and sometimes water. These pure options are ideal for simply adding sweetness to beverages like coffee or tea, or for smoothies, without adding bulk or affecting the overall volume of a recipe.
On the other hand, stevia blends are the most common type of stevia product found in grocery stores. These are designed to mimic the texture and measurement of sugar for easier use in baking and cooking. To achieve this, manufacturers combine a small amount of concentrated stevia extract with a bulking agent. Erythritol is one of the most popular bulking agents for this purpose. Others include dextrose, maltodextrin, or allulose.
Why erythritol is often added to stevia products
Manufacturers add erythritol to stevia blends for several key reasons:
- Bulking agent: Since pure stevia is intensely concentrated, a bulking agent is needed to create a granular product that can be measured cup-for-cup like sugar. This makes it more convenient for consumers to use in recipes.
- Improved flavor profile: Pure stevia can sometimes have a bitter or licorice-like aftertaste, particularly at higher concentrations. Erythritol helps to mask this aftertaste and creates a cleaner, more sugar-like flavor.
- Sugar-like texture: Erythritol provides the crystal-like texture and volume that consumers expect from a granulated sweetener, making it a better substitute for table sugar in baking.
- Fermentation: Erythritol is a sugar alcohol that occurs naturally in some fruits, and is produced commercially by fermenting corn. Its low-calorie and zero-glycemic properties make it an attractive companion to calorie-free stevia.
How to find stevia without erythritol
If you are concerned about consuming erythritol or prefer pure stevia, finding products without added fillers requires careful label reading. Here's what to look for when shopping:
- Check the ingredients list: The most reliable method is to read the ingredients. Pure stevia products will list only “stevia leaf extract” or a specific steviol glycoside like “rebaudioside A” (Reb A). Any other ingredient, especially erythritol, allulose, or maltodextrin, means it is a blend.
- Look for liquid drops: Liquid stevia is less likely to contain bulking agents, as it doesn't need the granular structure of a powdered product. However, some liquid versions may still include other additives like glycerin, so check the label.
- Search for "pure stevia extract": Use specific search terms online or look for products labeled as "pure stevia extract" to filter for single-ingredient options.
- Research brands: Certain brands, like NOW Foods and Stevia In The Raw (specific products), are known to offer erythritol-free options.
Comparison: Stevia blends with erythritol vs. pure stevia extract
| Feature | Stevia Blends with Erythritol | Pure Stevia Extract |
|---|---|---|
| Ingredients | A mix of stevia extract, erythritol, and potentially other additives like natural flavors. | Contains only concentrated stevia leaf extract or steviol glycosides. |
| Form | Typically granular or powdered, designed to measure like sugar. | Highly concentrated liquid drops or fine powder. |
| Sweetness | Adjusted to a 1:1 ratio with sugar due to the bulk of erythritol. | Much sweeter than sugar, requiring only a tiny amount to achieve desired sweetness. |
| Best for | Baking, recipes needing volume, and convenience for 1:1 sugar replacement. | Sweetening beverages, yogurt, and other uses where bulk isn't required. |
| Flavor | Cleaner, more sugar-like taste with less aftertaste compared to pure versions. | Can have a slightly bitter or licorice aftertaste, especially in larger amounts. |
| Potential Side Effects | High doses of erythritol may cause digestive upset in some individuals. | Generally well-tolerated, but can interact with some blood pressure and diabetes medications. |
Making an informed choice
Choosing between pure stevia and stevia-erythritol blends depends on your needs, taste preferences, and health goals. For baking, the sugar-like properties of an erythritol blend are often more convenient. However, for simple sweetening of drinks or if you want to avoid additives like erythritol, a pure liquid or powdered extract is the right choice. It’s important to remember that recent research has raised some questions about the long-term health effects of erythritol, particularly concerning heart health, for at-risk individuals, though more studies are needed. Always consult with a healthcare provider if you have specific health concerns or conditions. For many, moderation and checking the ingredient list remain the best course of action. For further information on the differences between various natural sweeteners, Healthline provides a helpful comparison: https://www.healthline.com/nutrition/erythritol-vs-stevia.
Conclusion: Not all stevia is created equal
In conclusion, the belief that all stevia products contain erythritol is a common misconception. The presence of erythritol is a deliberate formulation choice made by manufacturers to create blends that mimic sugar's texture and behavior. Pure stevia extract exists and is sold in concentrated forms without any fillers or bulking agents. By knowing the difference between pure extracts and commercial blends and scrutinizing ingredient labels, consumers can make informed decisions based on their dietary needs and preferences.
The takeaway: does all stevia include erythritol?
- No, not all stevia includes erythritol. Pure, concentrated stevia extract is available in liquid and powdered forms without any fillers.
- Most granulated stevia products do contain erythritol because it acts as a bulking agent, providing a sugar-like volume and texture.
- Read ingredient labels carefully to determine if a product is a pure extract or a blended sweetener.
- Choose liquid drops or concentrated pure powders for an erythritol-free option.
- Blends are convenient for baking, while pure extracts are best for simple sweetening.
