Chipotle Mexican Grill experienced its highest recorded digital sales day in company history thanks to its National Avocado Day promotion. Demand for the free guacamole offer drove digital sales up nearly 60 percent, leading to Chipotle's biggest summer sales day ever.

"We were blown away by the excitement around our free guacamole offer," says Chris Brandt, chief marketing officer at Chipotle. "Demand was so high, our app and online store were flooded with orders, resulting in our biggest summer sales day to date. Breaking this record also broke the internet, so we want to make sure everyone can take advantage of our offer by joining us today for more free guac."

In addition to being Chipotle's biggest summer sales day and record breaking for internet sales, it also generated more, new app downloads than on any other single day. And, almost 700,000 avocados were used to meet customer demand, which is almost 200,000 more than an average day.

As a thank you to fans, Chipotle is extending yesterday's promotion and offering free guacamole August 1 with the purchase of any entrée, while supplies last. The offer is valid on online and app purchases only, has a limit of one per customer, and may not be combined with other coupons, promotions or special offers. Additional terms may apply; void where prohibited.