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Home / World

‘Whiskey fungus’ fed by Jack Daniel’s encrusts a Tennessee town

By Michael Levenson
New York Times·
2 Mar, 2023 06:00 AM5 mins to read

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Whiskey fungus on tree branches in Lincoln County, Tennessee. Residents have been complaining about the ethanol-fuelled fungus from a Jack Daniel’s distillery in neighbouring Moore County. Photo / Patrick Long via The New York Times

Whiskey fungus on tree branches in Lincoln County, Tennessee. Residents have been complaining about the ethanol-fuelled fungus from a Jack Daniel’s distillery in neighbouring Moore County. Photo / Patrick Long via The New York Times

The dark growth, fed by alcohol vapours from barrels of ageing Jack Daniel’s whiskey, has coated homes, cars, patio furniture and road signs in a sooty crust, residents said. One woman is suing Lincoln County.

The ethanol-fuelled fungus known as whiskey fungus has thrived for centuries around distilleries and bakeries. It’s been the source of complaints from residents who live near Kentucky bourbon distilleries, Canadian whisky makers and Caribbean rum manufacturers.

Now it is driving a wedge between some residents of Lincoln County, Tennessee, and Jack Daniel’s, the famed distillery founded in 1866 in neighbouring Moore County.

For months, some residents have complained that a sooty, dark crust has blanketed homes, cars, road signs, bird feeders, patio furniture and trees as the fungus has spread uncontrollably, fed by alcohol vapours wafting from charred oak barrels of ageing Jack Daniel’s whiskey.

Jack Daniel’s has built six warehouses, known as barrelhouses, to age whiskey in rural Lincoln County, which is home to about 35,000 residents, and is building a seventh on a property that has room to house one more, a company spokesman said. The distillery has asked the county to rezone a second property where it could build six additional barrelhouses.

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A company representative, Donna Willis, told county officials in November that 14 barrelhouses would generate US$1 million in annual property tax revenue for the county, which had approved about US$15 million in general fund spending for the 2022 fiscal year.

But not all residents are happy about the expansion.

Christi Long, who owns a local mansion built in 1900 that she operates as a venue for weddings and other events, sued the county in January, contending that barrelhouses near her property lacked the proper permits.

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The fungus has encrusted the branches of magnolia trees, the Longs said. Photo / Patrick Long via The New York Times
The fungus has encrusted the branches of magnolia trees, the Longs said. Photo / Patrick Long via The New York Times

A judge ruled last week that one barrelhouse currently under construction had not been properly approved and that its building permit would have to be rescinded until Jack Daniel’s obtains the necessary permits.

Long’s lawyer, Jason Holleman, said he planned to ask the judge to broaden the order to stop Jack Daniel’s from using other barrelhouses near Long’s 4,000-square-foot mansion, known as the Manor at ShaeJo.

Long and her husband, Patrick Long, said whiskey fungus had already inundated the property, darkening the copper roof and exterior walls, creeping over the rock garden and metal gate, and encrusting the branches of magnolia trees. Nearby, it blackens metal road signs, they said.

The Longs said they use a high-pressure hose to wash the property every three months with Clorox bleach and water, but the fungus always returns.

“If you take your fingernail and run your fingernail down our tree branch, it will just coat the tip of your finger,” Patrick Long said. “It’s just disgusting.”

Christi Long said her corner of Lincoln County “is going to be black as coal” unless Jack Daniel’s installs air filters in the barrelhouses, one of which sits about 250 yards from her property.

“This fungus now is on steroids,” she said.

A lawyer who represents Lincoln County declined to comment, citing the continuing litigation.

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Melvin Keebler, general manager of the Jack Daniel Distillery, said in a statement that the company “complies with all local, state, and federal regulations regarding the design, construction, and permitting of our barrelhouses.”

“We are committed to protecting the environment and the safety and health of our employees and neighbours,” Keebler said.

At a county commission meeting in November, Willis, director of technical services, maintenance and barrel distribution at Jack Daniel’s, said studies have shown that the fungus is not hazardous to human health and does not damage property.

“Could it be a nuisance?” Willis said. “Yeah, sure. And it can easily be remedied by having it washed off.”

She said the company would not agree, however, to power-wash homes, saying Jack Daniel’s could be held liable for any damage.

A whiskey-ageing warehouse of Brown-Forman in Louisville, Kentucky, coated in whiskey fungus in 2012. Photo / Ben Sklar, The New York Times
A whiskey-ageing warehouse of Brown-Forman in Louisville, Kentucky, coated in whiskey fungus in 2012. Photo / Ben Sklar, The New York Times

Willis also said air filters could hurt the flavour that Jack Daniel’s whiskey acquires during the ageing process. Distillers refer poetically to the liquor that evaporates during that process as “the angel’s share.”

The fungus that thrives off the lost alcohol has been noted at least since the 1870s, when Antonin Baudoin, director of the French Distillers’ Association, observed a “plague of soot” blackening the walls of distilleries in Cognac, France.

James A. Scott, a professor at the Dalla Lana School of Public Health at the University of Toronto who has studied the fungus since 2001 — and helped name its genus, Baudoinia, in honour of Baudoin — said he was not aware of any research specifically looking at the health effects of exposure to the fungus.

But the fungus can destroy property and can cling to almost any surface, he said. A puff of alcohol, Scott said, makes it remarkably resistant to temperature changes, allowing it to withstand hot summers in Tennessee.

“The fungus is pretty destructive, and the only way to stop it is to turn off its alcohol supply,” Scott wrote in an email. “It wrecks patio furniture, house siding, almost any outdoor surface. I’ve seen trees choked to death by it. It is a small mercy that it does not also appear to have a negative impact on human health.”

Tracy Ferry said she and her husband, Warren Ferry, who bought a home in Lincoln County three years ago, were hoping that Jack Daniel’s would install air filters.

Tracy Ferry said that since Jack Daniel’s built a barrelhouse next door in December, whiskey fungus had been accumulating on the roof of her home and car and on trees on her property. She said she had scrubbed the paint off wooden patio furniture while trying to remove the dark growth.

“I could try and sell, but what am I going to get?” Ferry said. “Who’s going to want to live here?”

This article originally appeared in The New York Times.

Written by: Michael Levenson

Photographs by: Ben Sklar

©2023 THE NEW YORK TIMES

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