Before you start: only tap a tree you own or have permission to tap. Pick a healthy tree, use clean equipment, and never boil sap indoors without proper ventilation (see sap to syrup).
1. Know the tree
Sugar maple gives the sweetest sap on average; other maples work too (see maple trees). Identifying maples is easiest while they still have leaves, so many people mark their trees in autumn.
2. Check the size
University of Maine Extension advises a minimum trunk diameter of 25 cm (10 in), measured about 1.4 m (4½ ft) above the ground. Diameter means across the trunk, not around it. A tree 25–45 cm (10–18 in) across takes one tap; bigger, very healthy trees can take more, never more than three.
3. Pick your timing
Tap when the forecast shows freezing nights and days above freezing (see why sap runs). Tapping too early can let holes dry out; too late can miss good runs. In much of eastern Canada and the northeastern U.S. that is usually February to April, but it varies by place and year. Your local forecast is the real guide.
4. Drill the taphole
- Choose healthy-looking bark at a comfortable height, away from old tapholes: UMaine says at least about 60 cm (2 ft) above or below an old hole and 15 cm (6 in) to the side.
- Use a clean, sharp drill bit sized for your spout. Many small-scale spouts use 5/16 inch.
- Drill a shallow hole: UMaine says 1.5–2 inches (about 4–5 cm); Cornell Extension gives 1.5–2.5 inches.
- Guides differ on angle: UMaine drills level; Cornell angles slightly upward so sap drains toward the spout. Follow your guide and spout.
5. Set the spout
Tap the spout in gently until it is snug and cannot be pulled out by hand. Hammering too hard can split the wood.
6. Collect and keep it cold
Hang a covered, food-safe bucket or bag. Collect often, keep sap cold and out of the sun, and boil it as soon as you can: sap spoils, especially in warm weather.
7. At the end of the season
When nights stop freezing or buds swell, flow drops and flavour changes. Pull the spouts and clean your equipment with hot water (UMaine advises against soap residue).
Sources
- University of Maine Cooperative Extension, Bulletin #7036, How to Tap Maple Trees and Make Maple Syrup (2025 update). extension.umaine.edu
- University of Maine Cooperative Extension, Backyard Sugaring resources. extension.umaine.edu
- Cornell Cooperative Extension of Warren County, Maple Syrup Production. warren.cce.cornell.edu