Fact Finder - Movies
Asbestos Snow of The Wizard of Oz
The "snow" in *The Wizard of Oz*'s iconic poppy field scene wasn't snow at all — it was chrysotile asbestos, a material now known to cause mesothelioma and fatal lung disease. Marketed as "White Magic" and "Snow Drift," it coated actors' hair, skin, and costumes during filming. Hollywood chose it because it looked realistic and wouldn't ignite under hot studio lights. There's much more to this story than most people ever realize.
Key Takeaways
- The "snow" in the poppy field scene was made from chrysotile (white asbestos), marketed commercially under names like "White Magic" and "Snow Drift."
- Chrysotile was chosen for its realistic fluffy appearance and fireproof qualities, replacing cotton batting, which firefighters flagged as a combustible fire hazard in 1928.
- Asbestos-laden snow coated actors' hair, skin, and costumes throughout filming, causing repeated inhalation and direct skin contact without protective equipment.
- Crew members including stagehands, costume designers, and set decorators faced daily asbestos exposure with no masks or ventilation provided on set.
- By 1946, foamite mixed with soap, water, and sugar replaced asbestos snow, as seen in Frank Capra's It's a Wonderful Life.
What Was Actually in the Wizard of Oz Snow?
The snow falling over Dorothy and her companions in that iconic poppy field scene wasn't made of anything remotely close to real snow — it was chrysotile asbestos, also known as white asbestos. Its chrysotile composition gave it a white, fluffy appearance that convincingly mimicked actual snow on camera.
According to Asbestos.com, the material wasn't pure asbestos alone; it was likely a foam blend combining chrysotile with other materials. Some sources claim it was 100% chrysotile, but evidence points toward a mixture.
MGM chose it specifically for its realistic look and fireproof qualities — practical priorities for 1930s filmmaking. Marketers even sold it commercially as "fake snow" for cinema use, making it a go-to choice for Hollywood productions long before anyone understood its devastating health consequences. One contradicting account comes from makeup artist Charles Schram, who recalled that crushed gypsum was used for the snow, noting he removed the particles from Judy Garland's and Bert Lahr's wigs.
During filming, the asbestos-laden snow coated actors' hair, skin, and costumes, meaning cast members were unknowingly exposed to toxic fibers throughout production of the scene.
Why Did Hollywood Choose Asbestos Over Safer Alternatives?
Before asbestos entered the picture, cotton batting was Hollywood's go-to fake snow — and it was a serious fire hazard. Hot studio lights and electrical equipment turned large cotton quantities into dangerous ignition sources. By 1928, firefighters were already flagging the material as a combustion risk.
Chrysotile asbestos solved the fire prevention problem immediately. It didn't burn, it looked realistic on screen, and it was easy to scatter across sets.
Beyond safety, cost savings drove adoption — asbestos was cheap, widely available, and sold under brand names like "White Magic" and "Snow Drift" throughout the 1920s and 1930s. Much like Manet's Olympia sparked heated debate by defying the conventions of its era, asbestos in Hollywood challenged the accepted norms of what materials belonged on a film set.
Here's what made the choice feel reasonable at the time: nobody on set truly understood the health dangers. Asbestos was still considered a wonder material, not a deadly one. Its use extended well beyond fake snow, appearing in linings, props, and backdrops across countless productions throughout Hollywood's Golden Age.
The Wicked Witch's broom was constructed from asbestos so it could appear burning on screen without actually igniting during filming.
What Other Asbestos Hazards Were Hidden Across the Production?
Asbestos snow wasn't the only hidden danger on The Wizard of Oz set — it crept into costumes, props, and production elements that actors handled directly for hours at a time.
Ray Bolger's Scarecrow costume used asbestos backstitching and flame-retardant treatment to protect him during fire scenes, exposing him through prolonged skin contact. Margaret Hamilton's iconic broom relied on prop insulation made from asbestos fibers, giving it fire resistance during the Wicked Witch's burning scenes.
Costume linings, backdrops, and other set elements also contained asbestos throughout the production.
Crew members — stagehands, costume designers, and set decorators — faced daily exposure without masks or ventilation. Since mesothelioma and lung cancer can take 10 to 50 years to develop, many never connected their illness to those Hollywood sets. Buddy Ebsen nearly died after inhaling aluminum powder makeup used for the Tin Man role, illustrating just how little regard the production had for the safety of those on set.
Did the Wizard of Oz Cast Know the Asbestos Snow Was Dangerous?
You'd think someone might've raised concerns, but the industry had normalized asbestos as a practical, fire-resistant material.
Studios viewed it as a responsible choice under hot lights, not a liability.
Without masks, ventilation, or warnings, actors like Judy Garland inhaled fibers repeatedly — breathing in what everyone around them confidently called a safer alternative. The specific type of asbestos used for fake snow was chrysotile, or white asbestos, chosen for its realistic white color and fine, curly fibers that mimicked the look of freshly fallen snow.
This same era of normalized danger and ignored warning signs mirrors other famous cases of the period, such as the 1926 disappearance of Agatha Christie, where a bottle labeled poison found in her abandoned car was treated more as a theatrical prop than a genuine cause for alarm by investigators.
Did Any Wizard of Oz Cast or Crew Develop Asbestos-Related Illness?
The most compelling suspected case involves Jack Haley Jr., son of the Tin Man actor. He died of respiratory failure at 67 in 2001, and mesothelioma from secondary asbestos exposure remains a suspected cause.
The theory suggests Haley Sr. carried asbestos fibers home on his clothing. No definitive medical causation was ever established, leaving the connection speculative. Mesothelioma is a particularly deadly cancer, with around 2,500 deaths occurring annually in the UK alone.
The Wizard of Oz was not the only production to expose cast and crew to asbestos hazards, as films like Goldfinger saw painter Ronald Sharpe develop mesothelioma after cutting asbestos boards on set without any protective equipment.
What Do Modern Films Use Instead of Asbestos Snow?
Modern filmmakers have largely solved the fake snow problem with a surprisingly simple formula: foamite (the active ingredient in fire extinguishers) mixed with soap, water, and sugar. These foam alternatives replaced asbestos by 1946, when Frank Capra first used the method in It's a Wonderful Life.
The formula's real advantage is its versatility. You can spray synthetic flakes anywhere on set with precision, adjust the intensity for gentle flurries or wind-driven blizzards, and film convincing winter scenes during Los Angeles summers. The mixture eliminated both the fire risks that originally made asbestos attractive and the deadly health hazards asbestos itself created. Chronic exposure to asbestos has been directly linked to mesothelioma and asbestos-related lung disease, devastating conditions that claimed the lives of several Hollywood actors.
Before foamite, the Los Angeles fire department had actually recommended asbestos as a safer alternative to cotton batting, which was considered a fire hazard on set. This recommendation, though well-intentioned at the time, led to widespread asbestos use across Hollywood productions throughout the 1930s and 1940s. Today, online tools can even help productions calculate the large exponents involved in scaling foam mixture ratios across massive studio sets, illustrating how far technical planning has come since the asbestos era.