TECHNIQUE KNOWLEDGE

Starch Slurries

A starch slurry disperses starch in cool liquid before it enters a hot sauce, allowing rapid thickening without clumps.

Why It Works

Cool liquid separates starch granules. Heat then makes them absorb water and swell, producing viscosity.

Method

1. Mix starch with cool water or another suitable cool liquid.
2. Stir until completely smooth.
3. Re-stir immediately before use because starch settles.
4. Add gradually to simmering liquid while stirring.
5. Allow the sauce to reach the activation temperature before judging thickness.

Common Mistakes

• Adding dry starch directly to hot liquid.
• Adding too much before the first addition activates.
• Forgetting that prolonged boiling can weaken some starches.
• Using the same amount for every type of starch.

Professional Application

Widely used in stir-fries, gravies, soups, fruit sauces, glazes, and à la minute sauce adjustment.

Related Techniques

Roux thickening, reduction, stir-frying, simmering, and sauce finishing.