/ck/ - Food & Cooking

I was reading through my old notebooks and found a conversation from my classmates I transcribed a few years ago and had a question:

>Classmate was at coffeeshop getting an iced coffee
>Barista asks if they want their ice on the top or the bottom
>What.
>Do you want your ice on the top or the bottom?
>Classmate says it doesn't matter since if you put the ice on the bottom, it'll just float up to the top.
>Receives iced coffee
>Goes back in a week later, talks to different barista about the previous barista
>Hahah, that's so dumb. If you put the ice on the bottom, it won't even cool the coffee.

Does this shit make any sense to coffeefags? The second one is obviously full retard, but I think I can understand why the first barista may have asked that—if they add ice first (at the bottom) they may bias the ice:coffee ratio in favour of the ice, meaning a more watery coffee; if they do it last (at the top) they may bias it in favour of coffee and you'll get more actual coffee. Is that an accurate assessment or am I missing something?