Just got my refractometer, Yikes!!

I can't believe the poor quality of even organic, locally grown farmer's market food. Most of what I tested came out poor to average. Even the tree-ripened oranges and vine-ripened heirloom tomatoes I tested were averge. But hey, these delicious kyoho grapes I got tested even better than excellent! Woohooo!! I'll be eating a lot of those. I wonder, could you test animal products such as milk and cream? Or what about olive oil? Anyone know?

I love this refractometer!! No wonder I'm so acidic!