Answer

A tight joint needs three things: flower ground to pieces 2 mm to 4 mm wide, a paper with a firm grip, and pressure applied before the paper is sealed. Roll the paper around the flower with both thumbs, press the top edge down, and tuck. A joint that holds its shape when you tap it on the tray burns at a steady rate.

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What you need

Step 1: Grind

Grind to a medium cut. Pieces larger than 4 mm leave air gaps. Pieces under 1 mm fall through and clog the airway. Flower held at 58% to 62% relative humidity rolls and burns well. Dry flower crumbles and burns hot.

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Step 2: Filter and paper

Fold a card tip into a W or a spiral. Place it at one end of the paper. The tip sets the diameter of the joint. A tip 8 mm wide holds about 0.6 g of flower.

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Step 3: Fill and shape

Spread flower along the paper in a line that is thicker in the middle. The line should sit level with the tip. Pinch both ends of the paper and lift the front edge over the flower. Work from the middle to the ends with your thumbs. Keep flower from spilling past the tip.

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Step 4: Tuck and pack tight

Hold the top edge with both index fingers. Roll the bottom edge up and tuck it inside the top edge. Press the tuck flat. Push the flower toward the tip with a packing tool or a pen. Add flower if the joint looks thin. Roll the paper closed and tuck again. Repeat until the joint feels firm along its full length.

Target density: the joint should bend about 10 degrees when you press the middle. If the paper dents with no spring back, the pack is loose. If the flower does not move when pressed, the pack is too dense and airflow drops.

Step 5: Seal and finish

Wet the gum strip with one light pass. Too much water weakens the seal. Press the seam with your thumb from the tip to the end. Tap the joint on the tray to settle the flower. Twist the open end or fold it flat.

Common problems

Notes

Combustion of cannabis flower reaches 600 C to 900 C (1,100 F to 1,650 F) when air pulls through the cherry. Smoke from plant material carries tar and carbon monoxide. Keep joints small and take breaks.