Hehe, gallon. I get simultaneously confused, amused and irritated by imperial measurements :P
A gallon of maple syrup is heaps. But 16 gallons of sap sounds like a lot of effort. Pretty cool that you can make your own. I've not really thought about that before.
Jubi & Amai: We only have a few maple trees on our property but the difference this year is that the sap is really flowing. It takes weather that's above freezing in the day and below freezing at night for the sap to flow, if it freezes alltogether or warms up the sap will stop. This year is really good where I'm at because we're getting A LOT of days and nights that are good for the sap. But since we only have a few trees we've only made 10 quarts of syrup, which = 2.5 gallons. And haha, Jubilex, you're Australian, that's right :P What units of measure do you guys commonly use?
And Amai, I have a half day of school today so maybe you'll get more responses out of me than usual :)
Also, I think they use the metric system. I've actually been trying to use the metric system as well, since the rest of the world seems to know what they're doing in that regard.
You make me feel lazy, Amai heh heh XP