[header] How to smoke baby back ribs [title] Trim off the membrane from 3 to 4 slabs of baby back ribs. [step] Insert the tip of a butter knife underneath the thin, white silver membrane to loosen it a little. Take a paper towel and use it to grip the silver membrane. 
Pull the membrane completely off and discard it. [substeps] If you leave the membrane on, the membrane will become tough and chewy as the ribs cook.