If you defrost at cooling temperature, is this possible?
As shared in the above post, these are critical (maximum) limits for safe thawing. If the temperatures are reduced for thawing, it is going to take more time for the product to thaw.
Following is some Safe thawing methods as recommended by FSIS/USDA:
FSIS recommends three ways to thaw chicken: in the refrigerator, in cold water, and in the microwave. Never thaw chicken on the counter or in other locations. It's best to plan ahead for slow, safe thawing in the refrigerator. Boneless chicken breasts, bone-in parts, and whole chickens may take 1 to 2 days or longer to thaw. Once the raw chicken thaws, it can be kept in the refrigerator an additional day or two before cooking. During this time, if chicken thawed in the refrigerator is not used, it can safely be refrozen without cooking it first.
Chicken may be thawed in cold water in its airtight packaging or in a leak-proof bag. Submerge the bird or cut-up parts in cold water, changing the water every 30 minutes to be sure it stays cold. A whole (3- to 4-pound) broiler-fryer or package of parts should thaw in 2 to 3 hours. A 1-pound package of boneless breasts will thaw in an hour or less. Cook immediately after thawing.
Chicken that was thawed in the microwave should be cooked immediately after thawing because some areas of the food may become warm and begin to cook during microwaving. Holding partially cooked food is not recommended because any bacteria present wouldn't have been destroyed. Foods defrosted in the microwave or by the cold-water method should be cooked before refreezing.
Do not cook frozen chicken in a slow cooker or in the microwave; thaw it before cooking. However, chicken can be cooked from the frozen state in the oven or on the stove. The cooking time may be about 50 percent longer. Be sure that the chicken is cooked to a safe minimum internal temperature of 165°F as measured with a food thermometer.