Poke a hole in the top of your mason jar lid, insert one of these air locks, such as one might use for brewing: http://smile.amazon.com/ZFE®-Twin-Bubble-Snap--S

Poke a hole in the top of your mason jar lid, insert one of these air locks, such as one might use for brewing: http://smile.amazon.com/ZFE®-Twin-Bubble-Snap--Small/dp/B00QNFLSXE/ref=sr_1_15?ie=UTF8&qid=1443409398&sr=8-15&keywords=air+lock+valve http://smile.amazon.com/ZFE®-Twin-Bubble-Snap--Small/dp/B00Q... Problem solved! Worked for me anyway. Would love to hear more about how you made the lychee wine.