Here it’s not just that.
The raw resources and production costs of oat milk is like, €0.30 per 2 liter.
They sell it at €2.40.
Healthy is capitalism here.
Oat milk is just oats blended in water. The research is minimal. The marketing is where they put most of their money.
Most retail nut milk is actually mixed with a variety of gums and other texture enhancers.
Fresh, homemade oat milk is actually really easy to make by that process, but store-bought oat milk needs to have consistent flavor and texture/mouth-feel. So there is a bit more that goes into it.
This is also true of other non-dairy milks. That’s why I only use Trader Joe’s or Westsoy shelf-stable soy milk for making yogurt. No gums.
I think there is a huge difference in the thing you are describing and e.g the oatly barista.
There are a lot of oat milks that taste very different or not at all. To get the right taste and consistency, you need some research.
Plus vegans will pay anything in order to imagine themselves as being better than meat eaters.
