A practical reason coffee and tea drinking was discontinued after they moved to Utah is it's too dry and cold to grow there. They wanted to minimize their contact with non-believers so those habits had to go.
I’ll tell you what one of my mormon uncles said, during the (anti-alcohol movement) mormons did not want to be seen as Christians who started drinking tea and coffee instead of alcohol, so their god mysteriously came up with the “no hot drinks” then that was easily translated to no coffee.
As far as to cold and or dry, come on really people in the west were the biggest coffee drinkers.
But...
...how does this apply to verses 12-13?
I've yet to find a MORMON on FR that will admit to FAILING to follow this COMMAND in warm weather!
Must be rough when yer GENTILE neighbors keep inviting you over to a backyard BBQ in the summer!