A little OT, but this reminds me of an ongoing lawsuit over yarn. One company (Cascade) sued a rival (Debbie Bliss) over their fiber content because the company claimed the blend contained 12% cashmere content and some tests found no cashmere at all. According to one person's account, a rep has claimed that 12% could mean anywhere from 1 - 20%. Given the normally high cost of such a product people would believe they're getting a bargain where none exists.

I wonder if some of the other brands of lemon juice will try this tactic on their rivals.