What You Need to Know
Alginate forms a calcium‑cross‑linked network when exposed to Ca²⁺ ions, while gellan gum requires thermal dissolution followed by cooling to enable double‑helix aggregation and cation‑mediated junction zones. Precise control of polymer concentration, calcium source, temperature, pH and setting time determines firmness, clarity and shell thickness, allowing chefs to engineer distinct textural experiences.
The Science
Primary Reaction
Ion‑induced cross‑linking of polysaccharide chains (Ca²⁺ bridges alginate or gellan helices)