Why does pasta stick together?
Show answer & explanation
Answer: Starch gelatinizes on surface
Not enough water in pot — Wrong. More water helps prevent sticking by diluting released starch, but the root cause is starch on pasta surfaces binding together.
Starch gelatinizes on surface ✓ — Correct! Pasta surfaces release starch granules during cooking. These granules absorb water, swell, and become sticky gel (gelatinization). When pasta touches, the gelatinized starch acts like glue! Stirring prevents contact, and rinsing removes surface starch (but also removes sauce-gripping ability). Adding oil coats pasta, preventing starch adhesion.
Boiling too rapidly — Wrong. Boiling intensity doesn't cause sticking—it's surface starch gelatinizing. Vigorous boiling actually helps by keeping pasta moving.