Dutch Bros Coffee is urging patrons who snatched up a pair of specialized solar eclipse viewing glasses from one of their stands to not actually use the merchandise, as they may not be properly certified.

"We are now issuing a full voluntary recall of all these glasses," the coffee company said in a news release. "We purchased these glasses after receiving certification of ISO compliance from the manufacturer. Further investigation led us to question this certification. Your safety is of the utmost importance to us, so we are issuing this voluntary recall."

The much-publicized event in the sky the glasses were issued for is expected to begin in the Rogue Valley at about 9:03 a.m. today, peaking at about 93 percent coverage at 10:17 a.m., where it's expected to last about two minutes. It's expected to be completely gone by 11:37 a.m., according to the website www.eclipsewise.com. Oregon communities further north such as Salem, Madras and John Day will experience "totality," with the moon's shadow fully covering the sun for about two minutes.

Medical experts have continually hashed on the importance of using certified protective eyeware for viewing the eclipse —glasses that meet ISO 12312-2 standards, which should be outlined on the product — or using alternative methods such as a pinhole camera. Those who don't risk permanent damage to their eyes.

Dutch Bros asked customers to return the glasses to the location where they received them, where they could be exchanged for a free beverage.

"Any drink, any size," the news release said.

The company also apologized for the error.

— Reach reporter Ryan Pfeil at 541-776-4468 or rpfeil@mailtribune.com. Follow him at www.twitter.com/ryanpfeil.