Using Flax "Egg" Instead of Egg Whites
Ratio
1 tbsp ground flax + 3 tbsp water per egg white
Moderate — noticeable differences, use with care
Recipe Adjustment Notes
A binder, not a foam. Suitable for cookies and quick breads; useless for meringue or angel food cake.
The Science Behind This Swap
Flax mucilage binds and holds water but has no protein network capable of forming a stable whipped foam.
Measurement Variance Note
For 1 cup references, this ingredient can vary by about 6% across brands and measuring methods (228g-258g per cup). For the most reliable substitution result, measure by weight and test a half batch first.
How Flax "Egg" Compares for Egg Whites
Quality rating: moderate. A binder, not a foam. Suitable for cookies and quick breads; useless for meringue or angel food cake.