Concave vs Flat Burner Caps: Heat Distribution and Cooking Performance

The shape of a burner cap is not just cosmetic — it changes how heat reaches the cookware. When you build a SABAF-compatible burner line, the choice between a concave and a flat cap should be driven by cooking performance, not just appearance. Here is what each shape does on the stove.

How a Flat Cap Distributes Heat

A flat cap produces an even, outward flame ring that spreads heat across the full base of the cookware. This suits everyday pots and pans with flat bottoms, delivering balanced heating for boiling, frying, and general cooking. Flat caps are the versatile standard and the safest default for most markets.

How a Concave Cap Concentrates Heat

A concave cap recesses the center, drawing the flame inward and concentrating heat toward the middle of the pan. This produces a more intense central hot zone, which suits cooking styles that need a strong center — like fast stir-frying or bringing a wok to high temperature. The concave profile also protects the flame from side drafts, improving stability in open kitchens.

Matching Shape to Your Market

• Flat — for general-purpose, mass-market stoves and Western-style cookware.
• Concave — for wok-based and high-heat cooking cultures where central heat matters.
• Finish — combine either shape with glossy or matte enamel to match your brand positioning.

OEM Both Shapes from One Factory

Offering both concave and flat caps lets you cover more of the market from a single burner platform. THREEMI manufactures SABAF-compatible burner caps in sizes #130, #100, #75, and #55, in concave and flat shapes with your choice of finish — all branded under your name. Contact us to sample both and decide what fits your stove range.

About THREEMI

THREEMI is the export brand of Shenzhen Sanmi Manufacturing Co., Ltd., a professional gas stove and kitchen appliance factory in Guangdong, China. With 400+ employees, a 20,000㎡ production facility, and an annual output of 3 million units, we serve wholesalers, distributors, brand owners, and e-commerce sellers in over 30 countries. Our factory is certified ISO9001, CCC, CE, UL, GS, ETL, NF, and SASO.

Customize Your SABAF Burner with THREEMI

We offer OEM/ODM for SABAF-compatible burner heads in sizes #130/#100/#75/#55, with your choice of surface finish and component combination — branded under your name. Contact us for factory-direct OEM pricing, samples, and a custom burner program.

WhatsApp: +86 186 7003 0673
Email: logan@threemi.com
Website: www.threemi.com