Can Sodium Alginate withstand heat, i.e. be cooked or baked with?

Yes, it requires heat to activate.

Is this tested for heavy metals? Thank you

This product meets all requirements for food grade materials and is designated as Generally Recognized as Safe by the FDA.

Nowhere on the package there's usage suggestions. how much to use? say, to thicken a 24 oz. smoothie?

Usage will vary greatly based on application. Typical usage range is 0.2% -1% by weight of the liquid.

I have tried twice to make a .5% solution for reverse spherification, and both times I got a cloudy mixture - how do I dissolve completely?

You would need to disperse using a high shear blender and let it hydrate overnight.

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🌟 Elevate your kitchen to molecular mastery with pure, certified alginate magic!

PRECISION SPHERIFICATION - Perfect viscosity for both direct and reverse spherification techniques—gel without heat, every time.
PURE CULINARY INNOVATION - Harness the power of 100% food-grade sodium alginate for flawless molecular gastronomy creations.
SEAWEED SOURCED EXCELLENCE - Derived naturally from brown seaweed, ensuring clean, vegan, and sustainable ingredients.
CERTIFIED QUALITY ASSURANCE - Orthodox Union Kosher certification guarantees premium standards you can trust.
VERSATILE KITCHEN ESSENTIAL - Stabilizes, thickens, and emulsifies everything from ice cream to sauces—elevate your culinary game.

Modernist Pantry Pure Sodium Alginate is a 100% food-grade, non-GMO, vegan powder extracted from brown seaweed. Certified by the Orthodox Union for kosher quality, it offers the ideal viscosity for advanced molecular gastronomy techniques like spherification, acting as a cold gelling agent and stabilizer in a variety of culinary applications.

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