What's the BSci behind... Oatly? (Issue #25)

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Hi there,

This week: Oatly, the brand that turned alternative milk from a punchline into a personality.Founded in the 1990s by Swedish food scientist Rickard Öste, based on research from Lund University,

Oatly was the first to push oat milk into the global mainstream. For years it lingered in health food stores - then it rebranded, hijacked café culture, and went global, listing on the Nasdaq Stock Market in 2021. Today it generates roughly A$1.3 billion in annual revenue.Not bad for “fake milk”.

The Catch:

Going up against the dairy industry isn’t just competing with a product, it’s competing with tradition. Dairy is default. It’s cultural. It's a habit. It’s childhood. Oatly wasn’t just selling a milk alternative, it was challenging ‘normal’. Classic David vs Goliath.So how did it win mindshare?

Here’s the psychology behind every pour:

🙋🏻‍♀️ Identity Signalling: Buying Oatly says ‘I’m environmentally aware, culturally tuned-in, not stuck in 1994’. It’s milk as a micro-identity, a small daily choice that reinforces who you believe you are.

👯‍♂️ Social Proof: When your local café switches, it signals what’s “right.” If people like me order this, it lowers the friction - and suddenly oat becomes easier to order.

🌎 Licensing Effect: Choosing oat milk feels like a small moral win. One carton = instant climate-aligned self-image, with zero lifestyle overhaul required.

💥 Von Restorff Effect: Never afraid to push the marketing envelope. Plus, Oatly’s text-heavy, minimalist cartons scream different. And different doesn’t just stand out, it sticks.

💡 BSCI Takeaway For Marketers💡

If you challenge the default, expect to be the joke (at first). People will laugh, roll their eyes, and question why you’re doing it. But when you strike a cord with the right people, enough people follow and the joke flips: what once seemed strange becomes standard. Sometimes the smartest move isn’t fitting in. It’s rewriting what “normal” looks like.

Behaviourally yours,

Dan Monheit