Finally, the air in the screw cap is not pushed into {HEAD ~ the bottle}, which further reduces the amount of oxygen in {TAIL ~ the neck} of the bottle 
Finally , the air in the screw cap is not pushed into { HEAD ~ the bottle } , which further reduces the amount of oxygen in { TAIL ~ the neck } of the bottle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH