Spacious capacity, slim-depth, and a sleek mirror design.
※When installing the unit with its side against a wall, ensure at least 1.5 cm of clearance if the door cannot open fully.
(Lower Freezer Compartment, Vegetable Compartment)
A light press opens the drawer automatically. Even heavily loaded drawers or the lowest drawer open with ease.
Large capacity 670L (rated), with a slim 65.4cm depth for a clear view to the back and easy access to stored items. A flat, minimal design with reduced unevenness blends seamlessly into living spaces. The "Mauve Grey" tone complements contemporary grey-toned kitchens. A stylish glass finish with a calm mirror expression creates a refined impression. Wood-grain accents on the handles add a subtle touch of sophistication. The lower freezer and vegetable compartments feature powered drawers for added ease of use.
Easy freezing that preserves taste, with spacious storage.
※Tested by Hitachi. The effect may differ depending on food types, freshness, packaging condition.*1
※Tested by Hitachi. The effect may differ depending on food types, condition, and packaging condition.*1 *2
※If high milk-fat ice cream or similar items are placed in the thin-item case in the upper or lower freezer compartments, they may soften. In such cases, please transfer them to the large-item case in the lower freezer compartment.
*1 Test model: R-GWC670TC (performance equivalent to R-GW670TV). Comparison between the upper tray of the lower freezer compartment (Delicious Freezing mode) at Freezer temperature setting ■■ and the middle tray of the lower freezer compartment (Regular Freezing mode) at Freezer temperature setting ■■. Test conducted at an ambient temperature of approximately 20°C with no door opening or closing. Lamb meat (wrapped) was stored for 10 days and then naturally thawed at an ambient temperature of approximately 20°C for 4 hours before comparison. Boiled broccoli was sealed in a bag and stored for 10 days before comparison.
*2 Test model: R-GWC670TC (performance equivalent to R-GW670TV). Comparison between the upper tray of the lower freezer compartment (Delicious Freezing mode) at Freezer temperature setting ■■ and the middle tray of the lower freezer compartment (Regular Freezing mode) at Freezer temperature setting ■■. Test conducted at an ambient temperature of approximately 20°C with no door opening or closing. The time required for food to pass through the maximum ice crystal formation temperature zone (-1°C to -5°C) was measured. Test food: lamb meat (wrapped). Upper tray: approximately 89 minutes; middle tray: approximately 182 minutes.
※Moisture Cooling is not applicable for door pockets.
※Tested by Hitachi. The effect may differ depending on food types, condition, and quantity.*4,5,6
Leaf Salad Stored after 1 Day
Potato Salad Stored after 1 Day
Low temperatures suppress vegetable respiration and help retain vitamin C.
※Tested by Hitachi. The effect may differ depending on food types, condition, and
quantity.*7
※Image shows model R-HXCC62X (equivalent performance to R-GW670TV).
Capacity, dimensions, and design may vary between
R-HXCC62X and R-GW670TV.
*3 By default, "Moisture Cooling" is on. When activated, the total power consumption is increased by approx.5%.
*4 Comparison between refrigerator compartment ("Moisture Cooling" on, unwrapped) of R-HXCC62S (equivalent performance to R‑GW670TV) and the refrigerator compartment of R-XG56J (without Moisture Cooling, "Spot Powerful Cooling" off, unwrapped). Room temperature set at approx. 20°C and without door opening/closing. Approx. 400 g (100 g × 4) of leaf salad was stored for 24 hours. Humidity values show the average humidity around the shelves. The effect may differ depending on operating conditions and frequency of door opening.
*5 Comparison between refrigerator compartment ("Moisture Cooling" on, unwrapped) of R-HXCC62S (equivalent performance to R‑GW670TV) and the refrigerator compartment of R-XG56J (without Moisture Cooling, "Spot Powerful Cooling" off, unwrapped). Room temperature set at approx. 20°C and without door opening/closing. Potato salad was stored for 24 hours before comparison.
*6 Foods with strong odours or foods that easily absorb odours should be wrapped.
*7 Comparison between the refrigerator compartment of model R-GXCC67T (equivalent performance to R-GW670TV) with Moisture Cooling enabled and no plastic wrap, and the refrigerator compartment of model R-XG56J with Moisture Cooling and Spot Powerful Cooling disabled and no plastic wrap. Test conducted at an ambient temperature of approximately 20°C with no door opening or closing. Cabbage and Japanese mustard spinach were stored for 7 days before comparison.
Vitamin C retention results:
*8 When the room temperature is approx.32°C and the refrigerator compartment temperature has stabilised with the "Moisture Cooling", on.
※Tested by Hitachi. The effect may differ depending on food types, condition, and quantity.*10
Cheese Stored after 3 Days
※Tested by Hitachi. Fresh food was used in the test.
※High-moisture foods such as dairy products, cut
vegetables/fruits,
and tofu may freeze.
※ Image for illustrative purposes only. The effect may differ depending on food.
Maintains fish freshness at approx. -1°C
*11 without freezing.
※Tested by Hitachi. K-value evaluated after 3 days. The effect may differ depending on food types,
condition, and quantity.*12
※Image for illustrative purposes only.
※Tested by Hitachi. The effect may differ depending on food types, condition, and quantity.*12 *13
Chicken Thigh ▶ Chicken Sauté
※Image for illustrative purposes only.
*9 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. This value represents the average pressure inside the compartment when operated for 3 days without opening or closing the door.
*10 Comparison of storage for 3 days between Vacuum Compartment (unwrapped) of R-GWC670TC (equivalent performance to R-GW670TV) and chilled room of R-K40H (unwrapped). Room temperature set at approx. 20℃ and without door opening/closing. Foods with strong odours or foods that easily absorb odours should be wrapped.
*11 When the room temperature is approx. 32°C and the refrigerator compartment temperature has stabilised, the temperatures shown are approximate food temperatures.
*12 Tested model for Vacuum Compartment (-1℃): R-GWC670TC (equivalent performance to R-GW670TV). K-value evaluated after 3 or 7 days. Room temperature set at approx. 20℃ and without door opening/closing. Stored without wrapping. Tuna: 19.5% after 3 days(initial value 10.5%), Chicken Thigh: 59.9% after 7 days (initial value 42.4%). K-value is an indication of freshness. The lower the value, the fresher the item. Generally, a K-value above 20% is considered unsuitable for raw consumption, and above 60% is considered unsuitable for consumption.
*13 Comparison of storage for 7 days between Vacuum Compartment (-1°C setting, unwrapped) of R-GWC670TC (equivalent performance to R-GW670TV) and refrigerator compartment of R-GWC670TC (■■ setting, wrapped). Room temperature set at approx. 20℃ and without door opening/closing.
Detailed results:
Technical note: K-value is an indicator used to evaluate food freshness. A lower K-value indicates fresher food. In general, foods with a K-value exceeding 20% are considered unsuitable for raw consumption (e.g., sashimi), while foods with a K-value exceeding 60% are considered unsuitable for consumption.
*13 (Comparison with Refrigerator Compartment): Test model: R-GWC670TC (performance equivalent to R-GW670TV). Comparison between the Vacuum Compartment and the refrigerator compartment with Moisture Cooling disabled. Test conducted at an ambient temperature of approximately 20°C with no door opening or closing. Food was stored for 7 days before comparison.
※Tested by Hitachi.
Hokkaido University and Hitachi have continuously worked together to develop the Platinum Catalyst with an improved carbon dioxide generative capacity and increased ethylene gas decomposition performance by combining platinum and ruthenium.
This award recognises outstanding technologies developed and commercialised by companies based on research results from universities and research institutions, which contribute to scientific and technological advancement, economic development, and social welfare. In fiscal 2020, the prize was presented for the "Development of a platinum catalyst for maintaining the freshness of produce" to Professor Fukuoka of Hokkaido University and Hitachi Global Life Solutions, Ltd.
※Tested by Hitachi. Aero-care Vege Compartment is only for the bottle shelf space.
※Image for illustrative purposes only.
※Tested by Hitachi. The effect may differ depending on food types, condition, and quantity.*14
Moisture Retention for spinach
Without Aero-care Vege Compartment
With Aero-care Vege Compartment
※Tested by Hitachi. The effect may differ depending on food types, condition, and quantity.*15
*14 Tested model for Aero-care Vege Compartment: R-GXCC67T (equivalent performance to R-GW670TV). Tested model for Without Aero-care Vege Compartment: R-H54S. Stored for 10 days. Room temperature set at approx. 20℃ and without door opening/closing. A comparable volume of vegetables (based on compartment capacity) was stored in both models.
*15 Tested model for Aero-care Vege Compartment: R-GXCC67T (equivalent performance to R-GW670TV). Tested model for Without Aero-care Vege Compartment: R-H54S. Room temperature set at approx. 20℃ and without door opening/closing. It does not have an effect of increasing nutrient content from the initial value.
Note: This feature helps preserve nutrients but does not increase the nutrient content beyond the food's original value.
Learns your household usage patterns from door opening/closing status to maintain a stable temperature and defrosts during stable periods, like late at night or when you're away.
Equipped with two cooling units and fans--one dedicated to the refrigerator compartment and another for the freezer and vegetable compartments. By separating the refrigerator compartment, its cooling unit can operate at a higher temperature, reducing energy consumption.
※Image for illustration purpose only.
※Image for illustration purpose only.
Includes an egg holder.
The case can also be used to organize and store small food items together.
The top shelf can store 500mL plastic bottles upright. By using it together with the door pocket, bottles can be stored in large quantities while keeping everything organised.
*16 The shelf set at a lower supporting rail.
Increases the cold air flow for a period of time to cool food faster.
※Tested by Hitachi.
※Image for illustrative purposes only.
Set using the "Cooling" button*17
Operating time is approximately 60 minutes after pressing the button.
※Door display and control panel are in English only.
※When storing warm food, allow it to cool to a temperature that can be comfortably held by hand (approx.50°C or below) before placing it inside.
※Image shows model R-HXCC62X (equivalent performance to R-GW670TV). Capacity, dimensions, and design may vary between R-HXCC62X and R-GW670TV.
*17 (Quick Cooling Mode): By default, Quick Cooling mode is disabled. When activated, the refrigerator's total power consumption increases by approximately 8%. This mode can operate independently regardless of the refrigerator's current temperature settings.
○ Descriptions and specifications are based on data from model R-GW670TV.
○ Data without specified testing institutions are based on in-house research.
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