A 13.5 lb turkey covers your 10 guests with generous leftovers.
Refrigerator thawing is the safest method. Allow 24 hours for every 4-5 lb of turkey and keep it on a tray to catch drips.
Next stepAlways verify the thickest part of the breast and thigh reach 165 F (74 C) on a meat thermometer before serving, regardless of cooking method.