Theorem is a unique experience in craft coffee devised by Portola Coffee Lab in Costa Mesa. Once an hour in the late afternoons, the small room with a counter seating only six people opens up for a set menu of one of a kind coffee drinks. You can call or go on their website for reservation.
The menu lists four items and you can order any three for $20.
Next is an amazing cappuccino made using milk with 6% butterfat. This milk has a texture like no milk I've had before and it makes for an incredible cappuccino.
The Coffee Sour is an incredible non-alcoholic coffee cocktail made with a cold brew, lemon, orange flower water, orgeat, and honey. When I tasted it I couldn't even tell there was coffee in it, just a balanced, complex mocktail.
The "Enhanced Espresso" must be ordered for the whole table (for $20). Lucky for me someone there was generous enough to order it. The enhanced espresso is coffee infused with various herbs and fruits using a vac-pot (reminiscent of the Rooibos cocktail I had at The Aviary in Chicago).
A peek into the back room held promise for future tastings. A barrel for aging ... alcoholic coffee cocktails, perhaps?
3313 Hyland Ave
Costa Mesa, CA 92626