Hillary Rodham Clinton lost her cool Tuesday when reporters asked her about wiping her email server clean — and responded by saying, “Like with a cloth or something?”

The Democratic presidential front-runner bristled at questions about how she used a private, home-based email server during her time as secretary of state — and even cut the Las Vegas press conference short after insisting she knew nothing about her server being wiped clean because “I don’t know how it works digitally at all.”

According to reports, the FBI, which has possession of Clinton’s server, believes there was an attempt to wipe it clean of data, but missing messages can be ­recovered.

Clinton talked to reporters after a Vegas speech, and defended her decision to not hand over emails that she deemed private.

“Any personal emails are my personal business, right,” she said before making her “like with a cloth” comment.

She said that had she used a government email account, critics “would be saying the same thing.”

She did admit that she wouldn’t do the same thing again: “In retrospect, this [using a private email server as secretary of state] didn’t turn out to be convenient at all. I regret this has become such a cause celebre.”

She ended her press conference abruptly, and shrugged when one reporter asked her if she thought the email issue would go away anytime soon.

Meanwhile, it emerged that Clinton’s email servers were maintained by a mom-and-pop outfit — run out of an old bathroom closet in a downtown Denver loft, ­according to a published ­report.

While Platte River Networks has ties to Democratic Colorado Gov. John Hickenlooper, it wasn’t clear how the company got hooked up with the former secretary of state, Britain’s Daily Mail reported Tuesday.

The company’s work with Clinton was even a secret to many of its employees, who were amazed when they learned of it.

“At the time I worked for them, they wouldn’t have been equipped to work for Hillary Clinton because I don’t think they had the resources. They were based out of a loft, so [it was] not very high security. We didn’t even have an alarm,” Tera Dadiotis, a customer-relations consultant for the firm between 2007 and 2010, told the Daily Mail.

“I don’t know how they run their operation now, but we literally had our server racks in the bathroom.”

While Dadiotis called Platte River Networks “a great place to work,” she described it as a “mom-and-pop shop.”

“I don’t see how that would be secure [enough for Clinton],” she added.