The Hong Kong Consumer Council has dropped a bombshell on the city’s kitchen appliance scene. In its latest issue of Choice magazine (Issue 568), an exhaustive evaluation of 13 dual-zone and full-surface induction hobs reveals a massive gap between marketing promises and real-world performance. Despite their widespread acclaim for being clean, efficient, and cool to operate, nearly 70 percent of the tested models failed an international standard for low-heat simmering. This casts immediate doubt on their suitability for delicate Cantonese braises and double-boiled soups. Even more concerning, several premium brands fell short in heat distribution and energy accuracy, while one budget-friendly model emerged as a star performer.
The Simmering Struggle
Simmering is the quiet heart of Cantonese home cooking, but the test—which melted chocolate under strict IEC 60350-2 guidelines—found most hobs could not handle gentle heat. Just four out of thirteen models managed to keep the temperature low and stable. The remaining nine allowed the oil temperature to spike far too quickly, meaning the “low” setting on many expensive cooktops is effectively a scorching medium. This is a critical flaw for anyone who relies on slow braises, delicate custards, or sauces that need patient attention.
Weak Speed and Uneven Heat
At the high end of the power spectrum, the results were equally mixed. Two models from German Pool and Giggas failed to heat cooking oil to 180°C within a full 45 minutes, a clear sign of underwhelming power output. A Panasonic unit was also notably sluggish, taking nearly 40 minutes to reach the target temperature. In contrast, the best performers finished the job in under 25 minutes.
Uneven cooking was another key disappointment. Six models produced distinct hotspots during a pancake-cooking simulation, burning the center while leaving the edges undercooked. This included all three of the “full-surface” induction hobs, which struggled to distribute heat evenly across their wider zones, creating cold spots precisely where the twin coils meet.
The Energy Efficiency Illusion
The report did not just target cooking power; it took direct aim at energy labels. The Rasonic RIC‑S44E was the worst offender, advertising a Grade 2 energy rating while testing at a Grade 5 level, largely due to standby power consumption exceeding 2 watts. In total, five models performed a full energy grade worse than their packaging claimed. The Consumer Council has forwarded these findings to the Electrical and Mechanical Services Department for investigation, a move that could carry serious implications for the manufacturers involved.
What You Should Look For
Despite the criticism, a clear value champion emerged. A model retailing for just HK$4,280 earned the top 4-star rating, proving that price alone is a poor indicator of quality. The Council also issued vital safety advice for consumers:
- Use a dedicated power outlet. Induction cooktops draw heavy current and should never share a socket with other high-power appliances.
- Inspect the glass surface. Even a minute crack can lead to shattering during a heating cycle.
- Let the fan run. Do not cut power immediately after cooking. The internal fan must cool sensitive electronics to prevent long-term damage.
The Broader Picture
This report is a stark warning for Hong Kong shoppers: trust the test, not the price tag. The Council’s findings highlight the urgent need for rigorous comparison before purchase. For the many home cooks who prize a perfect simmer above all else, this investigation is the definitive guide to cleaning up your cooking without burning a hole in your pocket—or your dinner.