Cape Crystal Sodium Alginate Food-Grade Thickening & Gelling Powder, 16 oz — Vegan, Gluten-Free

Cape Crystal Sodium Alginate is a 100% food-grade seaweed-derived powder used to thicken, gel, and enable spherification in cooking.

Extracted and refined from brown seaweed, this Sodium Alginate powder is a neutral-flavored, vegetable-based thickener designed for culinary use. It dissolves in water and many liquid preparations to create smooth sauces, stabilize emulsions, bind meats, and produce the popular caviar-like spheres used in modernist cuisine. Packaged in a 16-ounce (454 g) container, the product is gluten-free, vegan, non-GMO, and free from artificial additives or preservatives.

How do I use Sodium Alginate to thicken sauces and dressings?

Sodium Alginate hydrates in liquid to increase viscosity without altering taste. For even dispersal, blend the powder into a small amount of liquid first, then incorporate into the main batch and allow it to rest so trapped air and bubbles escape.

• Use an immersion blender for smooth integration and to avoid lumps.
• Start with 0.2–1.0% by weight depending on desired thickness.
• Allow 10–30 minutes for full hydration and stabilization.
• Works with water, stock, juices, and many dairy or plant milks.

What is spherification and how does this powder create caviar-like spheres?

Cape Crystal Sodium Alginate is suitable for both basic and reverse spherification techniques to form gelled spheres from liquids. The powder reacts with calcium ions to form a thin gel membrane while preserving a liquid center when handled correctly.

• Basic spherification: add calcium to the flavored liquid, drop into alginate bath.
• Reverse spherification: mix alginate into the flavored liquid, drop into calcium bath for firmer skin.
• Control firmness by varying contact time with the calcium solution.
• Rinse finished spheres in clean water to remove residual bath solution.

Can I use Sodium Alginate when preparing meat products or gluten-free baking?

Sodium Alginate functions as a meat binder and stabilizer, improving sliceability and moisture retention without altering flavor. It also works in gluten-free and vegan formulations to add structure and reduce syneresis in fillings and loaves.

• Add small percentages to ground meat for nuggets, meatloaf, and formed cuts.
• Use in plant-based proteins to improve texture and cohesion.
• Combine with other hydrocolloids for tailored elasticity and bite.
• Free from gluten and common allergens, suitable for special diets.

This Sodium Alginate is a clean-label ingredient that provides functional performance for both home cooks and professional kitchens. It does not contain artificial stabilizers or preservatives and is refined for culinary use.

Who is this for? Home cooks experimenting with modernist techniques, professional chefs adding new textures to menus, bakers and food producers seeking a plant-based binder, and anyone on vegan or gluten-free diets who needs a neutral, reliable thickening and gelling agent.