Want to know one of the most common Keurig-related questions we're asked?
What's the difference between Keurig's B series and K series brewers?
Answer: Nothing. The switch from B to K was solely a marketing decision as the company realized branding their brewers with a K made more sense. (They're called Keurig, after all.)
The B66 Special Edition is an improvement on Keurig's B50 Signature brewers.
Both offer the LCD messaging center, a first for Keurig, with a 48 oz water reservoir.
What did the B66 add?
A third brew size: 10 oz.
You may also see a few other B6x brewers from Keurig. What makes them different?
Ultimately, all of the B series brewers were discontinued and rebranded as K series brewers with the B66 becoming the K66.
Keurig discontinued the K66 several years back, and today they have moved to their newest line of brewers with the K-Classic the closest thing to the B65/K65.