Should You Add Cornstarch to Hot or Cold Water? Expert Cooking Tips

Name: Should You Add Cornstarch to Hot or Cold Water? Expert Cooking Tips
Uploaded: 2026-07-11T00:00:00Z
Duration: 31 s
Description: Learn why cornstarch should be mixed with cold water first to avoid lumps and achieve smooth sauces every time.

Learn why cornstarch should be mixed with cold water first to avoid lumps and achieve smooth sauces every time.

Published Jul 11, 2026

Video transcript

Always add cornstarch to cold water to form a slurry before incorporating it into a hot liquid. Mixing cornstarch with cold water prevents lumps and ensures a smooth, even consistency when added to your dish. Use a ratio of one part cornstarch to two parts cold water, thoroughly mixing before combining with your hot ingredient.

Questions and answers

Why should cornstarch be mixed with cold water instead of hot water?
Mixing cornstarch with cold water prevents lumps and creates a smooth slurry, ensuring even thickening when added to hot liquids.
What is the correct ratio of cornstarch to water for a slurry?
The recommended ratio is one part cornstarch to two parts cold water for an effective slurry.
Can I add cornstarch directly to hot liquids?
No, adding cornstarch directly to hot liquids can cause clumping; it should always be mixed with cold water first.
How do I avoid lumps when using cornstarch in cooking?
Always create a slurry by mixing cornstarch with cold water before adding it slowly into your hot dish while stirring continuously.