As someone who worked as a Starbucks barista for over a year, here are some of the biggest red flags to look out for. It's not always wise to mobile-order a drink with cold foam or shaken espressoCold foam won't last that long on top of a drink. Mary Meisenzahl/InsiderCold-foam cold brews have boomed in popularity over the past few years — pumpkin cold foam, Irish-cream cold foam, almond milk-honey cold foam, the list goes on. A little mixing can taste nice, but you lose the texture of the cold foam, which is a delight in itself. The same principle applies to any shaken espresso drink.

---

Persons: Baristas, —, aren't, Mary Meisenzahl, barista, I'm, It's, Ramin Talaie, Getty, it's, that's, Sarah Jackson, I've Organizations: Starbucks, Service