If the arrival of German discount grocery store chain Lidl to the U.S. is of any concern to Kroger Co. (KR - Get Report) , the company is putting on a brave face not to show it.

"I'm glad their stores are finally open," Kroger CFO Michael Schlotman said at Oppenheimer's Consumer Conference on Wednesday, June 21.

Schlotman said he is excited, in fact he feels "great about it," to finally start seeing if the preparations Kroger put in place to compete with Lidl will stand the heat.

On June 15, Lidl opened its first 20 stores in the U.S., in Virginia, North Carolina and South Carolina. Four of those stores are within one mile of a Kroger location, according to Oppenheimer analyst Rupesh Parikh.

Get your party hats on ��Our U.S. stores open their doors at 8am & we can't wait to welcome our first customers ������ #rethinkgrocery pic.twitter.com/FGSfFwz56d

— LidlUS (@LidlUS) June 15, 2017

Ahead of the grand opening, Kroger reduced prices at some of its southern stores. TheStreet recently did an online price comparison at Walmart Stores Inc. (WMT - Get Report) , Whole Foods Market Inc. (WFM) and Kroger locations in Ohio and found Kroger to be the cheapest option, with our basket totaling $16.58, compared to $19.86 and $38.29 at Walmart and Whole Foods, respectively.

One of the biggest markdowns Schlotman highlighted at Wednesday's conferences was on the price of a half-gallon carton of milk. He said at some of those southern stores, milk is sold for 99 cents, compared to the $1.29 price at the Kroger store in Ohio that TheStreet digitally visited. According to Lidl's website, a half-gallon of 1%-fat milk goes for $1.31.

"We have a lot of customers who are willing to spend more inside the stores and there are a lot of customers who are on a budget," Schlotman said. "It's far less expensive to lose money on milk than lose customers."

Still, Schlotman said, "Each year has been more competitive than the last," within the grocery retail space, but asserted that some of it is "us causing the competition."

Kroger's shares fell 0.4% to $22.46 on Thursday afternoon.

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