[header] How to marinate ribs [title] Defrost your ribs completely. [step] Place them in the refrigerator two to four days before your plan to cook them. The amount of defrosting time is commensurate with the size of the rack. 
[title] Turn the ribs on their front side. [step] Slice the thin membrane at the back and pull it off to make it more tender and allow the marinade to penetrate a little further.