@MarySmith It seems you two are in agreement over the test procedure. Yay!

Customers, people tend to treat products with a higher perceived value as more desirable.

She understood this well when she said: 'Tell each taste tester, 'This bread contains gold,'' which I believe is what will truly drive the impact."

If people prefer bread with even a small amount of gold over bread without, the answer to the question becomes a clear YES.