585L,Pewter, Flush Dispenser, Flat door design, Orange LED, Twin Cool, Silver Nano, Wine Rack, 3.5 Star 585L pewter side by side refrigerator Not only great looking the SRS583HDP side by side refrigerator features revolutionary technology. Twin cooling technology for more effective cooling, Silver Nano for longer storage times and multi-flow cooling in the fridge and freezer for even cooling through out. twin cooling system What is Twin Cooling System? SAMSUNGs Twin Cooling System controls and generates cooling air for the refrigerator and freezer separately, with two independent evaporators and precise electronic control, thus maintaining each compartment at their optimal humidity level and cooling conditions. Why Twin Cooling System? For best storage of your foods, each refrigerator and freezer compartment requires different conditions such as humidity, temperature and storage time.For example, the ideal temperature for the freezer is -18?C, and for the refrigerator is 3?C (a difference of 21?C). Also, a high humidity level in the refrigerator compartment is a critical condition for optimal storage of your fruits and vegetables, while too much humidity can have harsh effects on the performance of the freezer compartment. In order to satisfy such wide ranging conditions, SAMSUNG electronics has developed the Twin Cooling System. Maintaining Optimum Humidity Food that loses more than 20% of its moisture is deemed not fresh and unhealthy to eat. Because single evaporator refrigerators use dehumidified air from the freezer compartment to cool the refrigerator compartment, loss of moisture in food is hastened. With the Twin Cooling System, cool air in the refrigerator compartment does not travel to the freezer compartment, preventing food fr