Answer:
True
Step-by-step explanation:
The stinking tube used to collect sap is a product of many toxic compounds like, phenol, acetophenone and Di-2-ethylhexyl phthalate (DEHP); used as plasticizers in polymer products to make plastic flexible.
There is every possibility that traces of these toxic compounds and others from contamination will be mixed with the sap and potentially harm the health of those who consume the syrup.