First, it’s a 5 oz bottle…why are we having this conversation? Just drink it already!
BUT should it get knocked to the back of the fridge behind some brewskis and a half a bottle of ketchup, have no fear! ether elixir™ has a short fermentation cycle and once refrigerated the natural acidity of the product keeps it safe to consume almost indefinitely. However, the flavor and the carbonation level are subject to change over long periods of time due to the fact that it is a living beverage and fermentation continues to occur very slowly even in cold temperatures. Worst case, it sits in there for a few months, and you have yourself a bottle of organic vinegar.