corks can break while opening a bottle, or expand when exposed to air, making it hard to reseal your wine. try wrapping the cork in wax paper before reinserting it. the wax paper acts as a lubricant so it&39s easier to slide the cork back into the bottle. that&39s also why you can pull the cork out more easily the next time. the wax paper will also make sure bits of cork don&39t fall into the wine, saving you the trouble of fishing them out with a straw. sourcehttplifehacker.comwrapcorkswithwaxpapertoeasilyresealandreopenw1645869389