What You Need to Know
Formed through weak physical bonds (hydrogen bonds, electrostatic interactions) in hydrocolloids like xanthan gum, agar, or gelatin that temporarily disassociate under shear stress. Naming derives from Greek 'thixis' (touching) and 'tropos' (change), first characterized by Herbert Freundlich in 1928.
Enables fluid sauces that hold shape on plates but spread when touched, or self-healing dessert gels. Critical in modernist spheres like fluid gels where controlled viscosity changes improve mouthfeel without stabilizer overload.
Key Parameters
Temperature
°C - °C
Time
30min (balanced set/recovery)
Instant (xanthan fluid gels) - 24h (slow-set high-Bloom gelatin)
Equipment
High-shear blendersSous vide for temperature controlSiphon whippers for aerated thixotropic gels
Steps
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The Science
Primary Reaction
Shear-induced alignment of polymer chains