From Quebec’s official website:
The sugaring off
As freeze turns to thaw, the sap begins to rise in the maple trees. Following Amerindian custom, the first settlers learned to tap the sugar maple and reduce its sweet water to obtain a thick syrup prized for its flavour, colour and clarity. This seasonal ritual led to a thriving industry, one that each year produces thousands of hectolitres (hundreds of thousands of quarts) of syrup, taffy and maple sugar—representing 85% of Canada’s output
Nectar of the gods
Before it’s processed, the sap is collected drop by drop through spouts inserted into the trees. In the old days, pails would be hung from these spouts and their contents emptied regularly into horse drawn barrels. Times have changed though, and today many sugar bushes use a network of tubes connecting the spouts to a pump and carrying the sap to an evaporator. It takes roughly 40 litres (42 US quarts) of sap to produce one litre (1.05 US quarts) of pure syrup.
Source
Note the “before it’s processed.” Now, what’s in a phrase and who determine’s what is colloquial and what is lexical? I’d say in this case the largest producer of maple syrup does.