Your right about the electricity David. Kingston got a power generating plant in 1892 only 13 years after Edison invented the light bulb. https://www.jpsco.com/about-jps/our-history/
I first stayed in Accompong Town in the early '90s and there was no electricity at all. A panel truck brought block ice every day or so but it was so rare an occurrence that people used it for food and not for a luxury as cold or cool beer. It wasn't until after '01 that a somewhat reliable source of current came there but it browned and brightened so frequently that motors and compressors burned out all the time so, again, still little evidence of a cold or cool beer.
Today there is mostly reliable current and only goes off during lightning storms but the browning and brightening is still somewhat of a problem. People there say it is a plot cooked up by Courts to sell refrigerators and freezers!
A friend told me that people distrusted drinking beer that went back and forth from cool to hot and that the practice of pouring out a splash on the floor, which started as "pouring a drink for the dead" morphed into a test for foam to see if the beer was flat and possibly spoiled.
Peace and Guidance