Consumer watchdog’s latest report reveals that price is no guarantee of performance, with two models failing to properly heat oil and several others misrepresenting energy efficiency.
The Hong Kong Consumer Council (HKCC) has released a comprehensive evaluation of 13 dual-cooktop and full-surface induction cookers, exposing significant variations in heating performance, energy efficiency, and safety compliance across models priced between HK$3,680 and HK$21,300. Published in the council’s Choice magazine issue 568, the test simulated real-world cooking scenarios to determine whether consumers are getting value for money—or potentially putting their kitchens at risk.
Induction cooktops have surged in popularity among Hong Kong home cooks, celebrated for their sleek design, ease of cleaning, and ability to keep kitchens cooler than traditional gas stoves. Brands including German Pool, Panasonic, Whirlpool, Siemens, and Rasonic dominate the market. But the HKCC’s findings suggest that a premium price tag does not automatically equate to superior performance.
Two Models Fail Heat Test; One Triggers Overheating Protection
The most concerning results came from two models—the German Pool GIC-252DB and Giggas GS-238D—which failed to reach the required oil temperature of 180°C within 45 minutes, managing only to heat cooking oil past 170°C. This indicates subpar power control that could significantly slow down meal preparation. Another model, the Panasonic KY-C223B, required nearly 40 minutes to reach 180°C, leaving insufficient time to properly fry even a single batch of frozen potato chips during the test window.
In a separate heat-distribution assessment, five models produced crepes with darker centers, highlighting uneven heating that could lead to inconsistent cooking results. The three full-surface induction models tested also exhibited noticeable temperature variation: when cooking pancakes across the entire cooking zone, the central area—where two induction coils meet—produced lighter-colored results compared to the edges, suggesting heat concentration toward the front and rear sections.
Adding to the safety concerns, the German Pool GIC-252DB triggered its overheat protection mechanism and automatically shut off during testing due to elevated cooktop surface temperatures. While this is technically a safety feature, it also raises questions about the unit’s ability to handle sustained high-heat cooking without interruption.
Nearly 70% of Models Miss Low-Heat Cooking Standards
Low-heat cooking, essential for slow-simmered soups, stews, and sauces, proved problematic for most samples. The international standard IEC 60350-2 requires that oil temperature not exceed 53°C within the first 18 minutes of low-power operation, reach at least 40°C within 30 minutes, and never exceed 75°C. Shockingly, only four of the 13 models met all three criteria. Most units heated the oil too quickly at the start, and nearly 70% failed to maintain proper low-temperature control—a critical drawback for households that rely on slow cooking.
Energy Label Discrepancies and Standby Power Issues
The HKCC also uncovered inconsistencies between claimed and actual energy efficiency. Five models were found to have energy efficiency ratings one grade lower than indicated on their labels, based on calculations derived from heating efficiency tests. These results have been referred to the Electrical and Mechanical Services Department (EMSD) for follow-up.
Standby power consumption varied dramatically among the tested units, ranging from a minimal 0.13 watts to a concerning 2.28 watts. Under EMSD’s mandatory energy efficiency labeling scheme, any dual-cooktop induction cooker with standby power exceeding 2 watts receives the lowest rating (Grade 5). The Rasonic RIC-S44E—which ironically recorded the fastest oil-heating time in the dual-cooktop test—fell into this category, achieving a calculated Grade 5 energy label instead of the Grade 2 indicated on its packaging. All other 12 models stayed within the 2-watt standby threshold.
Expert Advice for Safe and Efficient Usage
Beyond the test results, the HKCC offered practical guidance for consumers to maximize safety and prolong appliance lifespan:
- Use a dedicated power outlet. Induction cooktops typically draw high wattage. Avoid sharing a socket with other high-power appliances to reduce fire risk.
- Choose appropriate cookware. Always use flat-bottomed pots and pans specifically marked as induction-compatible; using the correct size helps improve heating efficiency and reduces energy waste.
- Inspect the ceramic surface before each use. Cracks or damage to the cooktop surface require immediate attention—discontinue use and contact the manufacturer for repair or replacement.
- Do not unplug immediately after cooking. Most models run an internal cooling fan after shutdown. Allowing time for the fan to cool down internal components can prevent heat damage and extend the appliance’s lifespan.
High Scores and What to Consider Next
While the full ranked list is available in Choice magazine, the HKCC’s findings suggest that a top-scoring model—awarded four stars—is available for as little as HK$4,280, proving that budget-conscious consumers can still secure reliable performance. However, the report also serves as a cautionary reminder that as induction cooktop technology evolves—particularly with the rise of flexible full-surface cooking zones—thorough research remains essential.
For Hong Kong households, weighing the trade-offs between heating speed, temperature control, energy efficiency, and safety features will be key to making a sound purchase decision. As the EMSD reviews the reported energy-label discrepancies, consumers may see increased scrutiny of marketing claims in the near future, potentially leading to more accurate labeling across the industry.