The ADR yogurts from Schwyzer Milchhuus are super-fine, creamy and extremely fruity.
But it has happened to me a few times now that the lid is obviously not properly sealed or something was wrong during production: even freshly bought yogurts were sometimes moldy.
Of course I could return them, but I'm not going to wobble through the village back to Migros with an open yogurt in my hand for 60 centimes.
Perhaps it would be a good idea to check the packaging machine at Schwyzer Milchhuus or to pay closer attention to hygiene during production. It wasn't an isolated case, not at all. And it affected different flavors and batches.