The Science of Xanthan Gum in Gluten-Free Desserts

Xanthan gum is perhaps the most important ingredient in gluten-free baking after the flour itself. Produced through bacterial fermentation, this hydrocolloid creates a viscous gel network that mimics the elasticity of gluten strands. When hydrated, xanthan gum traps expanding gases from leavening agents, allowing your bakes to rise properly. However, its power is exponential — too much and you create a gummy, dense texture. Understanding the precise ratios for different baked goods is the difference between a professional result and a disappointing one.