The Complete Handbook of Choy Sum
A practical field reference for growers, distributors, chefs, and serious home cooks
by Alumigogo Books
non-fiction
From field specs to wok readiness: the complete practical reference on growing, choosing, and selling Choy Sum.
About this book
Choy Sum is a staple green across East and Southeast Asian cuisines and an increasingly common item in Western wholesale produce markets, yet most guidance on it is fragmentary or anecdotal. This handbook consolidates the practical knowledge needed to handle Choy Sum professionally: what distinguishes the crop from other Asian greens, how to grade it on sight, and what conditions make it bolt or wilt before it reaches the plate.
The book covers the full life cycle from a commercial and serious-hobbyist perspective: seed selection and growing windows based on temperature, harvest timing and bunching specs, cold-chain handling from farm to distributor, and what to look for when inspecting a shipment. It also addresses day-to-day use in a high-volume kitchen, including storage protocols and common failure points like yellowing, seed stem development, and bruising.
For readers exploring business opportunities, the book reviews the wholesale pricing structure, supplier tiers, and adjacent markets such as microgreen production or private-label packaged greens. It closes with a look at emerging varieties, supply-chain shifts, and the standards bodies and trade resources that serious operators rely on. Appendices include a troubleshooting guide, a glossary of trade terms, and an FAQ drawn from real buyer and grower questions.
Reader Reviews
Michelle Thompson
★★★★★I bought this because we started sourcing Choy Sum for our wholesale produce business and I was flying blind on the quality specs. The chapter on choosing and selecting actually helped me negotiate with our growers; the section on temperature storage alone resolved a recurring wilt issue we'd been blaming on transit. Only gripe is the troubleshooting chapter feels a bit thin on advanced pest issues, which matters if you're growing at scale. But for a reference on handling and buying, it's now on my desk.
George Mitchell
★★★★★Decent overview, and the comparison to bok choy and yu choy clarified a lot for me as an enthusiast gardener. The growing specs are accurate, and the advice on bolt resistance in warmer weather is useful. That said, I felt the chapter on business opportunities was skewed toward wholesale and restaurant supply; there's not much for someone like me who wants to sell small-batch packed greens at a farmers market. I also wish it had more photographs or diagrams, since it's very text-heavy. A solid primer, just not exactly what the back cover promises for hobbyists.
Joshua Ramirez
★★★★★As a sous chef, I've handled a lot of leafy greens, but I'd never actually thought through why Choy Sum behaves differently from gai lan or bok choy. This book made that very clear, and the sections on receiving and washing are genuinely useful — we changed our overnight storage protocol and saw less yellowing the next day. I do wish it gave more specific sauce and prep variations; it's a reference handbook, not a cookbook, so that's probably on me. Still, it's earned a spot in the kitchen office.