New York CNN —Iced coffee just isn’t the same when you make it at home. This year, Keurig Dr Pepper launched a machine that is dedicated to iced coffee, advertising a drink “as cold as the coffee shops” in three minutes or less for $199. But there’s science behind why iced coffee is so much better at coffee shops, and current single-serve espresso machine innovations don’t meet that quality despite their marketing. And iced coffee mania comes at a time when coffee production is at risk of surging prices as factors like climate change could slash the global supply. Almost a quarter of Americans enjoy their coffee cold, according to this fall’s National Coffee Data Trends report.

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