Apelia (one p) also comes in a semi sweet red, which can be disconccerting if taken unawares.
Can also be bought in 11/2 and 2 ltr bottles, cheap as chips.
Many of the tavernas use 3 and 5 ltr jars of Italian wine as house wine, bought in bulk, reasonable quality.
Others use barrells of wine that I havent found the origines of, but also there a quite a number who spend part of their winter touring the Corfiet vinyards(not that there are many) and across to the mainland, for next years supplies.
But the real kafeneons and Greek for Greeks tavernas serve their homemade wine, which is often an aquired taste. There is a saying that after the first few glasses wine all tastes the same, this aint' neccessarily so. (I feel a song coming on)