Roughly chop fresh pine needles.
Add the pine needles and panela to a flip-top bottle.
Fill the bottle up with water, leaving 2 inches of headspace.
Cap the bottle and shake well.
Store the bottle in a warm spot out of direct sunlight.
After 2 days, carefully open the bottle to check the carbonation level of the liquid. It’s ready to drink when the soda gets nice and bubbly when the bottle is opened.
If the soda isn’t fizzy enough after 2 days, leave it to ferment and check it again the following day. The soda may take several more days to finish fermenting. Check it daily until it has reached the desired level of carbonation.
Strain through a fine mesh strainer. Serve chilled, or enjoy with ice. Store the soda in the refrigerator to slow fermentation if you don’t plan to drink it right away.