Skip to Main Content

Sugar sweet: Making maple syrup

Warm, fluffy buttermilk pancakes. A comfort classic that rouses us from our slumber into the kitchen for breakfast. Along with a golden pat of melted butter, a generous drizzle of maple syrup completes this staple. Kurt Lanzone, extension educator for Parke County, explains how that syrup traveled from tree to your table. 

1. Identify the maple tree

Sugar maple trees are preferred for making maple syrup due to the higher sugar content of sap. The trees have grayish-brown bark and leaves with five fat lobes and smooth edges. To protect their health and early growth, trees should be a minimum of 10 inches in diameter. 

Tapped tree
2. Tap the tree

Trees are tapped in early spring, when there is a span of several days of freezing and thawing. First, a hole is drilled into tree that matches the size of the spout used to gather the sap. Then, the spout is tapped into the hole with a hammer until there is a change in sound, signifying that the spout is seated firmly in the tree. 

3. collect the sap

From the spout, food-grade tubing is run to a food-grade collection container.Sap can also be collected by hand by hanging a bag or collection container from the spout.  

4. Evaporate the sap

Once enough sap is collected, it is brought to a steady rolling boil to start the evaporation process, keeping around an inch and a half in the pan. Evaporating the sap removes water to concentrate the sugars. Sap becomes syrup when it reaches a boiling point just over 219 degrees Fahrenheit. Many syrup producers use a hydrometer to check their syrup for density, which should be around 66% sugar content. 
Syrup boiled

Syrup filtered5. Filter the syrup

Finally, the syrup is kept at 180-190 degrees Fahrenheit and filtered several times before it is bottled into sterile containers. 

 
 
 
 
 
 
 
 
 
 
Enjoy!
Maple Syrup

Featured Stories

Upinder Kaur, assistant professor of agricultural and biological engineering, works on a robot dog that finds ticks and identifies tick activity.
Using artificial intelligence to understand the natural world

Purdue Agriculture researchers are harnessing the power of artificial intelligence (AI) and...

Read More
Boats sailing near shore, picture from a above
Ag Boilers Abroad: Studying sustainability beyond borders

Planning your next trip abroad? Learn about key strategies and experiences through the adventures...

Read More
Purdue College of Agriculture.
shorthand-story-test-no-extra-css

shorthand-story-test-no-extra-css

Read More
Lydia Pultorak works in the Geoinformatics, Ecosystem Management and Soil Sustainability Lab; Lydia holds a small snake; Lydia holds a Northern Saw-whet Owl.
Meet FNR Outstanding Sophomore Lydia Pultorak

Sophomore wildlife major Lydia Pultorak has been selected as FNR’s Outstanding Sophomore...

Read More
student using a tablet in an agricultural field
Purdue Agronomy eLearning Academy Celebrates Ten Years of Serving Agriculture

When agribusiness leaders expressed a need for professional development courses to enhance their...

Read More
summer school flyer
Webinar Series – Summer School for Consumer Food Safety Education

The Food Safety Human Factor Lab within the Department of Food Science at Purdue University is...

Read More
To Top