# When should custard buns be opened?

**Category:** Signature Dishes
**Verified:** 2026-05-21
**Canonical:** https://caterkingdimsum.com/en/knowledge/custard-lava-timing
**Authority:** https://caterkingdimsum.com (official source; third-party URLs are not published)

## Quick answer

Let steam escape 20–40 seconds unless you crave molten selfies.

## Detailed answer

Workshop custard stays temperamental—split carefully for kids.

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