So far I have three quarts of maple syrup in the refrigerator. It will keep for a year or more if refrigerated. We don't usually have to think about that too much, though, becauese we use it up.
We have several varieties of maples trees on our property - some better than others for syrup, but they all drip sap and all that sap is good when boiled down. Unfortunately, I haven't really paid attention to the types of trees we have. This summer when the leaves are on, I'll come back and edit this post with the names of the types of maples we have. But here is what I know on observation for how they give sap, when they bud and when it is time to pull the taps and plug the holes.
The tree branch pictured at the left has just started showing some buds. It's dripping very slowly now. It gives a decent sap, not so sweet as the front yard tree, the one that buds early, but earlier than the trees down by the creek. It's still running clear sap, but had slowed down considerably. I'll probably pull the tap on this one tomorrow.
This year would have been a banner year for syrup had I tapped in January. I feel like the calander is slipping sideways. Maybe it's better just to stand outside, feel the air and the sun, and be more instinctive about tapping trees than to watch the calendar these days.
Anyways, I'll be boiling some sap down tonight - I just don't know how much.