Cassel Earth Coffee

As Orange County’s second-largest city, Irvine has long been characterized as overly corporate – master-planned and largely developed by The Irvine Company – but as residents know, it has evolved over time to house everything from office towers to shopping malls, public parks, and large suburban neighborhoods. Nonetheless, Cassel Earth Coffee is the sort of space many people might think of as classically Irvine: A gourmet coffee shop operating inside the Atrium Building, a business center containing bank, real estate, bar-slash-barber shop and restaurant tenants, notably including long-running upscale Bistango. Accessible from the Atrium’s large, sunlit lobby, Cassel Earth is open only on weekdays during breakfast and lunch hours, and despite the building’s ticketed parking lot and garage offers free validation for an hour-long visit. In other words, unlike the typical mall or plaza cafe, you’ll need to push past light deterrents to experience Cassel Earth for yourself.

Based on our March 2026 visit – three years after it opened – we’d say it’s certainly worthwhile. The single-page menu presents largely as a third wave American coffee shop with “classics” ranging from $4 espressos to $6 lattes and cold brews, flavored lattes including typical vanilla, coconut, strawberry, and banana syrups ($6), caramel, mocha, and Spanish versions ($6.50), and “signature” coffees including iced flat whites ($5.50) and pistachio oat lattes ($7). Two tonics ($7), loose leaf teas ($5.50), and several matchas ($6 to $7.50) are also available; only a mugwort matcha latte hints at Cassel Earth’s Korean origins, notably nestled on the menu between Japanese teas, chai lattes ($6), and Italian-style affogatos ($7.50). A pastry case includes multiple croissants ($5.50), danishes, and buns produced for the cafe at a Los Angeles bakery; a separate, beautiful collection of French-style financier cakes ($3.95 each) from Irvine-based Mr.Brown Financier is on prominent display above the croissants, and instantly appealing.