The secret to longer-lasting freshness is reduced oxygen levels. Hitachi’s original preservation extracts air to maintain approx. 0.8 atm^* of vacuum preservation. With unique Platinum Catalyst, chilled meat, fish and dairy products are kept fresh and nutritious, and ready to cook.

^*Vacuum is a state of lower pressure than atmospheric pressure. The pressure inside vacuum compartment is approximately 0.8 atmospheres, which is lower than atmospheric pressure, so Hitachi calls it a vacuum.

Increasing food fresh longevity with a vacuumed environment^*1 which prevents oxidation and supports nutrient retention.

DHA Value in Mackerel Stored after 7 Days^*2

^*1 Vacuum is a state of lower pressure than atmospheric pressure. The pressure inside vacuum compartment is approximately 0.8 atmospheres, which is lower than atmospheric pressure, so Hitachi calls it a vacuum.

^*2 Tested by Hitachi. Tested model: R-WX74K. (Equivalent performance to R-ZXC740WH and R-WXC740WH) The effect may differ depending on types or freshness of food stored and does not extend to best-before and expiration dates.

Protecting the freshness of food without freezing at approximately -1°C. No freezing or wrapping required. Enjoy ingredients fresher for longer.

^* Tested by Hitachi. Tested model : R-WX74K(equivalent performance to R-ZXC740WH and R-WXC740WH).

^* K-value is calculated and compared with Vacuum Compartment and refrigerator compartment. Freshness is calculated by K-value which is an indication of freshness. The lower the value, the fresher the item.

K-value of 20% or higher is not suitable for eating raw and K-value of 60% or higher is not suitable for consumption. The effect may differ depending on types or freshness of food stored and does not extend to best-before and expiration dates.

^* Tested by Hitachi. Tested model : R-WX74K. (Equivalent performance to R-ZXC740WH and R-WXC740WH)

The effect may differ depending on types or freshness of food stored and does not extend to best-before and expiration dates.

Vacuum technology by Hitachi reduces oxygen levels to maintain approx. 0.8 atmospheric pressure enabling food to be marinated faster, leaving you with more time to savour your meals.

^* Tested by Hitachi. Tested model: R-WXC74W (equivalent vacuum compartment performance to R-ZXC740WH and R-WXC740WH).
Penetration rates may differ depending on food seasoning used.

The secret to long-lasting freshness is reduced oxygen levels. Hitachi’s original preservation extracts air to maintain approx. 0.8 atm of vacuum preservation. With unique Platinum Catalyst, chilled meat, fish and dairy products are kept fresh and nutritious, and ready.

^* Vacuum is a state of lower pressure than atmospheric pressure. The pressure inside vacuum compartment is approximately 0.8 atmospheres, which is lower than atmospheric pressure, so Hitachi calls it a vacuum.

^* Image is for illustrative purposes only. Vacuum compartment size and designs are differ by models.

Now, you can truly chill. Store your food without freezing by selecting a suitable temperature for the stored items, and help prevent deterioration of flavours and texture.

Under the power of a Platinum Catalyst, food achieves amazing results. The increased carbon dioxide controls vegetable respiration, suppresses the loss of nutrients, and keeps the vegetables freshness longer.

Moisture Retention in Spinach Stored after 10 Days^*

^* Tested by Hitachi. Tested model for Aero-care Vege Compartment: R-HXCC62X. (equivalent performance to R-ZXC740WH and R-WXC740WH)
Tested model for without Aero-care Vege Compartment : R-H54V. The effect may differ depending on types and amount of food stored.

Under the power of a Platinum Catalyst, food achieves amazing results. The increased carbon dioxide controls vegetable respiration, suppresses the loss of nutrients, and keeps the vegetables freshness longer.

Vitamin C retention approx. 11% pt up

Initial Value
(78.2mg/100g)

 

100%

Aero-care Vege Compartment

 

85%

Aero-care Vege Compartment

 

96%

^* Tested by Hitachi. Comparison of vitamic C and moisture retention after 10 days. Effects may differ depending on the type, state and the amount of vegetables.

^* Tested model for Without Aero-Care Vege Compartment: R-H54V. Tested model for Aero-care Vege Compartment: R-HXCC62X (equivalent performance to R-ZXC740WH and R-WXC740WH)

The lower 2 shelves are kept at approx. 2°C. This is lower than the regular refrigerator temperature, so your items stored here retain their freshness. The sensor detects temperature changes and adjusts the cooling power to maintain the 2°C temperature in the right lower compartment.^*

^* Tested by Hitachi. The effect may differ depending on conditions and amount of food stored. When shipped, “Sensor Cooling” is turned off. Turning it on increases power use by approx. 5%. When “Sensor Cooling” is on, both “Sensor Cooling” and “Auto Powerful Cooling” are active. You can‘t set just one of these functions. If you put a warm pot (around 50°C) inside, "Auto Powerful Cooling" uses approx. 10% more power than normal.

Delicious Freezing technology seals in the original textures, flavours and nutritional value of fresh and cooked products. This is achieved by freezing food very quickly past the maximum ice crystal formation zone on a big aluminium tray.

A dedicated temperature sensor detects the temperature of the Delicious Freezing space, automatically switches the operation, and quickly freezes the food.

Aluminium tray helps food temperature pass quickly through “Maximum Ice Crystal Formation Zone (-1°C to -5°C )” and freezes food faster. This can suppress the growth of ice crystals and suppress damage to the food cells.

^* Tested by Hitachi.

When the Temperature Sensor detects the temperature of hot food, it will automatically switch the setting and freeze it very quickly to past the maximum ice crystal formation zone. Quick freezing reduces the ice crystal size and suppress the drip loss, thus sealing in flavours of meat and fish.

Lamb Stored after 10 Days^*

^* Tested by Hitachi. Tested model: R-GWC670TC (equivalent performance to R-ZXC740WH and R-WXC740WH).
The effect differs depending on the models and conditions.

When the Temperature Sensor detects the temperature of hot food, it will automatically switch the setting and freeze it very quickly to past the maximum ice crystal formation zone. This greatly reduces the loss of vitamin C.

Vitamin C Content of Broccoli^*

(mg/100g)

Raw Broccoli
Initial Value

 

87.3mg

Regular Freezing

 

43.8mg

Delicious Freezing

 

48.9mg

^* Tested by Hitachi. Tested model: R-GWC670TC (equivalent performance to R-ZXC740WH and R-WXC740WH).
The effect differs depending on the models and conditions.

When the Temperature Sensor detects the temperature of hot food, it will automatically switch the setting and freeze it very quickly to past the maximum ice crystal formation zone. This suppress deterioration of food quality.

Gelatinization Degree of Rice^*

Gelatinisation Degree (%)

Freshly-cooked Rice

 

100%

Regular Freezing

 

93.0%

Delicious Freezing

 

95.0%

^* Tested by Hitachi. Tested model: R-GWC670TC (equivalent performance to R-ZXC740WH and R-WXC740WH).
The effect differs depending on the models and conditions.

^* Tested by Hitachi. Tested model : R-HXCC62X. (Equivalent performance to R-ZXC740WH and R-WXC740WH)
Testing conditions: room temperature approximately 20°C, no door openings.
Salmon's photographed and weight loss rate was measured(after removing rapping): mid case -1.2%, bottom case -1.8%.
Unopened, individually packaged Ice popsicle’s photographed after removing from packaging.
The effect may differ depending on types or freshness of food stored and does not extend to best-before and expiration dates.

In Frost Recycling Cooling, chilled air is generated by frost formed in the evaporator. This is recycled by being sent to every compartment to cool down – even when the compressor is not running. Through such a system, energy consumption is reduced.

Download the Application (Please click the App Store/ Google Play logo)

^▵ IoT mobile application can control the main functions of the refrigerator, user please refer to HKH website for details, the application may change without notice.

Manage your purchase items by purchase date and the registered expiration date, to facilitate grocery shopping.

Change or view the mode setting or conditions of your refrigerator.^*

You can view the number of door opening^* in the application.

^* Only shown the number of door opening of the refrigerator, ice Making compartment, lower freezer and vegetable compartment.

Sends text to your smartphones, to notify you if the door is left open.

Flexible access to your support information such as viewing user manuals in your hands.

• Number of user connected to the Hitachi refrigerator: 5
• If user wishes to disconnect the Wi-Fi, please keep pressing Vacuum to switch off the WLAN and Wi-Fi.
• If the Hitachi refrigerator is power off, user needs to reconnect refrigerator to wireless LAN again.
• If your provided email address (e.g. Yahoo Mail, Hotmail etc.) cannot receive any verified code, user may needs to use another email address (e.g. Gmail, etc.) for registration.
• For security reason, please use a wireless LAN router that can set WPA2 or WPA (both of them are TKIP or AES) as the encryption method.
• The communication standards need to correspond to any of IEEE 802.11b / g / n (2.4 GHz only).
• Please use Android7.0、iOS12.0 above operating system, connect with Internet and wireless LAN, Android are trademarks or registered trademarks of Google LLC.
• The application is free to use, download and use the application may charge mobile data cost.
• Please agree the terms of use and the privacy policy of application.
• The contents of services, screen design, functions, etc. of the application may change without notice and the service provided may be terminated without notice.
• The application is not guaranteed to run on all smartphones.
• WPA

• , WPA2

• are trademarks of Wi-Fi Alliance.

Auto drawer technology provides a seamless opening experience. Even if, the compartment are fully packed, lower freezer and vegetable compartment drawers can be opened automatically just by touching a button.

^* Available for R-ZXC740WH, R-WXC740WH and R-WXC670RH

The heights of top two tempered glass shelves and the door pockets can be adjusted to match the size of the food items and your needs.