Interesting; have you tried different soy milks? Some use seaweed extract which might give such an aftertaste (though I've never noticed).
Milk is subsidised in many markets, either directly or indirectly; but the demand side makes a big difference too. Also, things are often priced to what people will pay...
Milk is subsidised in many markets, either directly or indirectly; but the demand side makes a big difference too. Also, things are often priced to what people will pay...