
If you want a shelf stable oat that actually microfoams on a basic steam wand, go for Califia. It stretches evenly into fine, glossy foam that holds latte art and it stays stable in espresso instead of breaking. The taste is balanced and not overly sweet because it is unsweetened, and the 32 oz shelf stable cartons are easy to keep on hand.
A couple of dialing tips that help at home. Start with milk straight from the fridge, keep the tip just kissing the surface for a few seconds to add a little air, then sink the tip and create a whirlpool. Stop around hot to the touch which is roughly 140 to 150 F to avoid splitting. Swirl and tap before you pour, and pull the shot right before steaming so the crema does not get more acidic.
I'm with you on this pick. That barista oat blend actually stretches into fine, glossy microfoam on a basic wand, holds latte art, and stays stable in espresso instead of breaking. The flavor is balanced rather than sugary and the shelf stable format makes it easy to keep on hand. I had the same collapse with standard oats at home until I switched to it.