The first "dishwasher storage level certification" in the home appliance industry was released

With the improvement of domestic consumption level, consumers are paying more and more attention to high-quality home appliances, due to the increase in home situations affected by the epidemic. In our daily life, after three meals a day, it is inseparable from the washing and storage of tableware. The emergence of dishwashers has helped people to free their hands to a large extent, which has also become an important reason for dishwashers to become more and more popular with consumers. However, the hygienic storage of tableware after washing and cleaning is also related to the safety of consumers. Therefore, with the change of demand in the consumer market, more and more companies have added storage functions to dishwasher products. In the face of the uneven storage functions of dishwashers on the market, and there is no unified assessment and evaluation of relevant certifications, Zhongjiayuan (Beijing) Testing and Certification Co., Ltd. launched the "dishwasher storage level certification" for the first time, realizing the refinement of bacteriostatic rate, mildew prevention rate, odor removal, tableware moisture-proof, inner tank and internal parts moisture-proof on the basis of meeting the internal cleaning performance standards.

Ge Fengliang, vice president of China Household Electrical Appliances Research Institute, delivered a speech for the press conference. Dean Ge Fengliang first explained the background of this conference, introducing the increasing number of dishwasher products with "storage", "hygienic storage" and "dry ventilation" functions on the market. Due to the low entry threshold of the industry before, the quality of dishwasher products on the market is uneven and the phenomenon of functional homogenization is more, which damages the rights and interests of some consumers and manufacturers with independent intellectual property rights. The certification has limited the technical indicators of the product through internal cleaning, tableware moisture and internal parts moisture, odor removal, bacteriostatic and mildew prevention, etc., providing correct guidance for enterprise research and development and production, and providing the evaluation basis for product testing storage performance. At present, many enterprises have closely followed the standard, and some of the newly launched products have met the standard testing requirements, contributing to the development of a virtuous circle in the industry.

Bai Xue, director of the Water Conservation Room of the Water Efficiency Identification Management Center of the China Institute of Standardization, introduced the current shortage of water resources in the mainland, and promoted social water conservation through the implementation of the "Water Efficiency Labeling Management Measures" and the "National Water Conservation Action Plan" to comprehensively improve the efficiency of water resources utilization. The implementation background and implementation of the "Dishwasher Water Efficiency Labeling Implementation Rules" are introduced, and the "Dishwasher Water Efficiency Labeling Implementation Rules" will be implemented from April 1, 2021, and products shipped or imported before April 1, 2021 can be postponed to April 1, 2022. The rules are based on GB 38383-2019 "Dishwasher Energy Efficiency Water Efficiency Limit Value and Grade", and the water efficiency label clearly indicates the water consumption of the working cycle, the power consumption of the working cycle, the dry index, and the cleaning index items. It is proposed that as a typical water-saving product, the use performance of dishwashers is becoming more and more abundant, which is of great significance for the certification and evaluation of dishwasher storage functions.

Qin Yawei, project engineer of the Health Home Appliance Testing Center of the China Household Electrical Appliances Testing Institute, introduced the interpretation of the main performance methods and common problems of the current national standard of the dishwasher, and analyzed the common problems in the conventional performance: washing performance, drying performance, energy efficiency index, water efficiency index, noise and other indicators, mentioned that the various indicators complement each other and check and balance each other, hoping that the manufacturer will balance the relationship between the performance to optimize the dishwasher configuration, and provide reference suggestions for the enterprise dishwasher laboratory testing and the adjustment of the whole machine problem. In addition, the main revisions of the QB/T 1520 standard are summarized and analyzed.

Cao Ruilin, chief engineer of the National Household Appliances Metrology Center, interpreted the JJF 163-2021 "Dishwasher Performance Testing Device Calibration Specification" standard, which is JJFZ (Light Industry) 003-2019, which was released on December 22, 2021 and implemented on April 1, 2022. JJF 163-2021 is mentioned as the first measurement specification in the dishwasher industry, which proposes the definition of terms, technical requirements and evaluation methods for parameters such as dishwasher cleanliness rate, energy consumption coefficient, cleanliness ratio, etc.; designed standard pollutants, and proposed preparation methods and evaluation methods; combined with the power consumption, water consumption and time consumption of dishwashers, the concept of energy consumption coefficient is proposed, providing unified evaluation standards for production enterprises and testing institutions to ensure the accuracy and consistency of dishwasher performance tests.

Shi Ting, general manager of GfK's small kitchen division, analyzed the influencing factors of the home appliance market and introduced the low dishwasher ownership in the market at present, with a penetration rate of about 2.4%. The overall retail sales of dishwashers in 2021 are 2.355 million units, and the overall retail sales are 11.25 billion yuan, breaking through the 10 billion mark. In 2021, the number of brands in the market increased to more than 220, the number of models continued to increase to more than 1600, and the CR3 changed in the same period (2020 to 2021) from 59.4% to 66.2% online and from 78.6% to 83.3% offline. The pain points of China's kitchen are mainly concentrated in "small space, less storage, difficult to clean, and weak function", attracting new forces in the market incubation stage. Looking to the future, brands will still optimize product performance mainly around "washing, drying, consumption, storage and intelligence".

Xu Junhui, senior researcher of Reckitt Becky & Gamble (China) Co., Ltd., analyzed the development of dishwasher tableware detergent dosage forms, introduced the importance of detergents and dishwashers, consumer requirements for dishwashers and detergents are generally divided into: cleaning power, bright effect and no scale, safety (residue), multi-effect (tableware protection, help drying), convenience, environmental protection, energy saving and water saving. The development history and trend of detergents were introduced, and it was pointed out that one of the development trends is multi-cavity multi-function, the second trend is automatic detergent delivery, and the third trend is a variety of builders. It is mentioned that the development of detergents and dishwashers is mutually cooperative, and the two can jointly help the promotion of dishwashers through the design of the storage warehouse, the pre-washing program, the reduction of energy consumption and the temperature of the program.

Li Yi, director of the Health Home Appliance Testing Center of Zhongjiayuan (Beijing) Testing and Certification Co., Ltd., introduced the application of microbial evaluation in dishwashers, and introduced the harm to the human body of microorganisms that are prone to diseases from the mouth, such as E. coli, Salmonella, Candida albicans, Helicobacter pylori, EV71 virus, etc. Dishwashers utilize technologies such as water flushing, high temperatures, ultraviolet rays, photocatalysts, etc., to efficiently remove microorganisms from tableware. In addition, the microbiological standards and sterilization test methods of the dishwasher are also introduced, and the test methods of the bacteriostatic rate and the anti-mildew rate in the storage function of the dishwasher are also introduced. It is pointed out that through the corresponding dishwasher sterilization and storage procedures, the health and safety of food utensils can be guaranteed for a long time.

Yuan Hongyue, engineer of health home appliance testing center of Zhongjiayuan (Beijing) Testing and Certification Co., Ltd., interpreted CHCT-JSGF-115-2021 "Dishwasher Storage Grade Technical Specification", which put forward the internal cleaning index, bacteriostatic rate, mildew rate, odor removal, moisture-proof index, dishwasher storage index, storage grade index, and comprehensively evaluated the dishwasher storage function from the aspects of washing, drying during storage, microbial breeding, odor generation, etc. The test process is analyzed, the existing time data is analyzed as a whole, and the general products are mostly used to achieve a more ideal use effect through intermittent hot air drying, ventilation, ion sterilization and other technical storage functions during the storage time. It also introduces the precautions for the purchase of dishwashers, and considers the purchase through the use of space, convenience of use, cost performance, and safety.

Ningbo Fangtai Kitchenware Co., Ltd. dishwasher products department Manager Wang Wei introduced that JBSD2F-E5 and JBCD15E-WE01 dishwasher use innovative technology high-energy bubble washing, into water vapor hybrid spray water column, deep cleaning at the same time to achieve a good sterilization effect, washing and drying and storage integration, the use of 75 °C high temperature sterilization and PTC hot air drying to achieve excellent drying effect slag water strong drainage system, to achieve no sewage odor, to achieve 96 hours of long-term cleaning storage.

Dr. Geng Jie, head of the drying technology line of Foshan Shunde District Midea Washing Electrical Appliance Manufacturing Co., Ltd., introduced the Midea dishwasher GX1000 series for user pain points using midea's hot air circulation system, equipped with bacteriostatic storage function, and combined with unique photocatalyst bacteriostatic technology to achieve healthy and long-term storage of tableware. The addition of temperature and humidity sensors and odor sensors realizes intelligent control, which can achieve the best experience of users on the basis of energy saving and environmental protection.

Zhao Huizhe, general manager of the marketing department of Hisense (Shandong) Kitchen and Bathroom Co., Ltd., introduced the level 1 storage effect of Hisense dishwasher, which is achieved by the joint action of PowerDry hot air drying system and ion sterilization and taste purification system on the basis of deep and strong washing. PowerDry hot air drying system is equipped with a large air volume turbine hot air blower, the air outlet temperature is high, the air volume is large, accelerate the drying of dishes and inner cavity; when the ion sterilization net taste system works, the positive and negative ions collide to release energy to efficiently sterilize, and the free negative ions take the initiative to combine with the positively charged particles such as bacteria, dust, and smoke in the air to sterilize thoroughly, thus achieving 168 hours of long-term net taste storage.