Fancy schmancy maple syrup evaporators cost hundreds, if not thousands, of dollars to buy. And who knows? Maybe someday I’ll go there. But for my first year at this, and only 16(ish) tappable trunks I’ve identified on our property, I was looking for something a little less…committed.
I spent the first few years here thinking we didn’t have any maples at all. Then I learned that birch trees (and others!) can also be used, but we definitely don’t have any of those larger than 12 inches. Last fall, I finally went on a mission to comb the deeper parts of our woods and ended up identifying a good number of red maples and one big honkin’ sugar maple!
As temperatures started to climb above freezing last week, I went back out to the trees I had tied green ribbons around to start tapping. And again, trying to stick to a lean budget, I forwent (forgoed? foregoo?) the more aesthetically pleasing metal buckets in favor of these new hanging bags from TapMyTrees.
And just like that, I was off to the races!
I had read somewhere that I needed to keep the sap cool until I had collected enough to boil down—and to treat the sap like milk, not water. It couldn’t just sit around forever until I had collected gallons and gallons or it could spoil. So even though I only had about five gallons by last weekend, I knew I had to get an evaporation situation going sooner rather than later.
Why evaporate? Well, it takes about 40 gallons of tree sap to make 1 gallon of what we recognize as syrup. When it comes out of the tree it looks pretty much like water. And although I use our trusty indoor wood stove to slowly evaporate sea water all winter to make salt, the amount of time required (and steam created!) from doing a whole batch of syrup inside makes that a not-so-recommended activity.
The Mainers I asked, who have been doing this their entire lives, said “Just build an evaporator out of cinder blocks, of course.” Cheap? Check (cinder blocks are only just over $1 each). Materials? Check (local hardware store). Quick? Check (I put this puppy together in less than an hour). Burns calories on the weekend and pumps up your biceps? Bonus!
I used 18 cinder blocks and some assorted bricks from around the yard. You want the firebox itself to be as insulated as possible, so I poured some sand in the cinder block holes (also cheap at the hardware store). Then, the trick is to try and divert as much of the fire smoke as possible away from the syrup itself so that flavor doesn’t overwhelm the delicate maple.
A couple more cinder blocks at the back, with their convenient holes, make for a perfect chimney of sorts. Make it as tall as you can without getting too wobbly! Once the fire is going, you’ll start to see if there are any cracks or holes where smoke is escaping that it shouldn’t. You can either fill those with more sand or cover with bricks. I opted for the latter as this is only a semi-permanent installation—once all this ice melts I’ll be looking for a slightly flatter area in our yard to make an improved version. I also think I’ll add some more flat stones on top (like the one I have on the left here) all around for a more “finished” look.
But heck, for my first go this turned out pretty well. I had ordered this steam pan from Amazon because I was in a bit of a time crunch, but they’re probably readily available from local cooking and kitchen supply stores. The lip of it rests on top of the cinder blocks, suspending it above the fire. Once I’ve collected more sap, I’ll be adding a second steam pan to the front.
And speaking of collecting enough sap—I was so excited to get started with my first 5 gallons that I just went ahead and started boiling. But remember that 40:1 ratio I mentioned? Yeah, that doesn’t “boil down” to a whole lot when you only start with one bucket full. So even though I was checking it every half hour or so, it ended up going just a teensie bit too long and getting rather…toasty. Tastes a bit like a burned marshmallow.
But hey—it worked! I totally made something sweet out of watery-looking tree sap. And now I know I just have to start with a lot more volume, and keep adding sap to the pan as it boils until I end up with a hearty amount at the right temperature (219 degrees F). Also, I think I may opt to “finish” the syrup on the regular stove inside next time so I can keep a more controlled, watchful eye.
So to recap, that’s:
(18) cinder blocks @ $1.25 each = $22.50
(1) bag of sand = $4
(1) 6-inch steam pan = $33.50
Assorted brick pieces and extra stones (free for any self-respecting country person)
Not bad for $60 total.
And these monkeys? Well, they had a nice fire to warm themselves after running around in the snow all afternoon. And they’re going to grow up thinking this kind of thing is normal. Which pleases me. A lot.