"Alloa is a sea-port, and much known for its many whisky-distilleries, ale-breweries, collieries, and glasshouses."
"Caledonian sketches" by Sir John Carr, 1809, page 246.
That's pretty clear. And note the early date: 1809.
Would they have used peat in malting with collieries ofn their doorstep? Of course they boody wouldn't.
Just wait until I get started on malting in Scotland.