I can't drink alcohol, but my husband can. It sparked a business idea.

Natalie Chiu and her husband, Charlie started a sparkling tea business.

Provided by Natalie Chiu

• Natalie Chiu grew up in Hong Kong and moved to the UK to study food science.
• Her alcohol intolerance led her and her now-husband to start a sparkling tea business.
• Last year, she handed in her notice at her day job to focus on her business full-time.

This as-told-to essay is based on a conversation with Natalie Chiu, 36, the cofounder of Saicho. Her words have been edited for length and clarity.