Behind the Scenes: New England Maple Syrup Production

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Maple syrup is an iconic product of New England foodways, so I was especially excited to go on the BU sustainability field trip to Mass Audubon Ipswich River Nature Reserve last weekend. This FREE field trip was open to all BU students and included a guided tour of the maple sugaring process, followed by a pancake breakfast on the property. The tour was entirely outdoors, so we did some hiking through the snow as our guide showed us how to get from sap to syrup. Ever wonder how maple syrup is made? It’s a fairly straightforward process, but extremely labor intensive.

Maple Forest

How Maple Syrup is Made:

The first step is to tap the tree, which simply means drilling a hole and attaching a spout for the sap to drip and collect into a bucket. The number of taps in a tree depends upon its size, and even the oldest, largest trees at Ipswich River Reserve do not have more than 4 taps, so as not to compromise the tree or sap production. Trees have to have reached a certain size before they can be tapped (about 10 inches in diameter) and are often at least 40 years old. The metal buckets that collect the sap are emptied about every 6-8 hours, depending on weather conditions.

Maple Tree Tap

The sap itself looks and tastes like water (yes, we tasted it!), and is only about 1% sugar. It takes about 86 gallons of sap (at a 1% sugar concentration) to produce 1 gallon of maple syrup. No wonder it is so expensive! But how does the sap get turned into delicious maple syrup? All you need is heat.

Heating up the maple sap in the sugar shack

After the buckets of sap are collected, they are brought to the “sugar shack” to be heated up. As you can probably tell, the sugar shack is a steamy little cabin that houses the machinery. The sap is simply poured into a tank where it is heated up to just above boiling, so that the water evaporates out. Nothing is added to the sap. It is simply a matter of evaporation. Once the liquid reaches the desired temperature, you have maple syrup! No additives needed.

Maple Syrup: How its made!

After leaving the sugar shack, we were greeted with a sample cup of freshly made maple syrup. Things got even sweeter as we went into the barn for all you care to eat pancake breakfast. It was the perfect way to warm up and refuel after a chilly hike through the maple forest on a cold February day. Before leaving, I was sure to purchase my own bottle of locally produced maple syrup from the gift shop. After learning about how much work it is to produce, I have a much greater appreciation for it!

Flapjack Fling

Different Grades of Maple Syrup:

You may be wondering what the difference is between the different grades of maple syrup. The lighter syrups (Grade A: light and medium amber) are made earlier in the season, and the darker syrups (dark amber and Grade B) are made later in the season. The difference is simply due to the temperature outside. Before my field trip, I always assumed that Grade A was superior. After all, that is how it works at school, as well as in the grading of other food products, such as eggs. But in the world of maple syrup, that is not always the case. Grade B maple syrup has a more distinctively “maple” flavor, and is often called cooking syrup for this reason. So the grading scale is purely a matter of taste preference.

Maple Grading Regulations

For those of you that would like to learn more:

– Kelly

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