There are so many treat brands, and such
an abundance of new items entering the market all the time, that treats lend themselves to in - person shopping.
The extremely flammable ammonia was used as refrigerant, leading to a reluctance in adoption
of the mechanical contraption, especially when the natural ice industry was flourishing — after all, one enterprising
New Englander had kickstarted a global trade in ice (see The Frozen Water Trade), figuring how to make a commodity out
of an
item that nature supplied in
abundance all winter long.