The method 12, wherein said sealing part is substantially flat and is configured to extend substantially directly across the mouth of said container to form a seal over {TAIL ~ the mouth} of {HEAD ~ said container} 
The method 12 , wherein said sealing part is substantially flat and is configured to extend substantially directly across the mouth of said container to form a seal over { TAIL ~ the mouth } of { HEAD ~ said container }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD