Combustible Dust: Probability of Ignition

“Before the first atomic bomb test, scientists took the time to calculate whether the blast would ignite the nitrogen in the Earth’s atmosphere and incinerate us all. The risk was low and the test went off, but Rees wonders what the odds would have had to be to discourage the bomb makers.”  — Dennis Overbye [...]

The PSM Standard: Are Craft Distilleries Covered?

“A rule without exceptions is an instrument capable of doing mischief to the innocent and bringing grief—as well as injustice—to those who should gain exemptions from the rule’s functioning.”  — Derrick Bell I don’t remember when I first realized that there is a difference between process safety management and Process Safety Management. Process safety—the aspect [...]

By |2025-11-06T11:11:04-06:00October 23rd, 2025|Chemicals, Craft Distillery Safety, Process Safety, Process Safety Management|Comments Off on The PSM Standard: Are Craft Distilleries Covered?

Carbon Dioxide: Silent but Deadly

“I had thought fermentation was controlled death.”  — Michelle Zauner I enjoy touring distilleries. I love seeing the process of making whiskey, but I’m usually taken aback when we get to the fermentation step. Occasionally, the fermenters are enclosed and vent to the roof. Most fermenters that I see, however, are open top vats. This [...]

By |2025-11-06T11:11:31-06:00October 2nd, 2025|Chemicals, Craft Distillery Safety, Gas, Process Safety, Workplace Safety|Comments Off on Carbon Dioxide: Silent but Deadly

OSHA Says: Promptly, Timely, and As Soon As Possible

“We cannot do everything at once, but we can do something at once.”  — Calvin Coolidge I love a good play on words. “At once” can mean either “simultaneously” or it can mean “immediately”, and Calvin Coolidge managed to pack both meanings into a single sentence. “We cannot do everything simultaneously, but we can do [...]

By |2025-09-29T11:52:57-05:00September 26th, 2025|PHA, Process Safety, Process Safety Management|Comments Off on OSHA Says: Promptly, Timely, and As Soon As Possible

Confined Spaces: Even in Craft Distilleries and Microbreweries

“I have a horror of being in confined spaces.”  — Hayley Mills At a craft distillery that is not too far from Bluefield’s offices, the owner spoke about his need to climb into the pot still to clean out the stillage, especially the spent grains. He saw me wince and said, “Yeah, I know. It’s [...]

By |2025-11-06T11:12:04-06:00September 11th, 2025|Craft Distillery Safety, Procedures, Process Safety, Workplace Safety|Comments Off on Confined Spaces: Even in Craft Distilleries and Microbreweries

Ethanol: What Are the Limits?

“Ventilation is the profound secret of existence.”  — Peter Sloterdijk Most people, when hearing about the legal limits of ethanol, will think of Blood Alcohol Concentration (BAC). Except for Utah, where the BAC limit for driving is 0.05%, the BAC limit in the United States is 0.08%. That applies to drivers that are 21 years [...]

By |2025-11-06T11:12:56-06:00August 28th, 2025|Chemicals, Craft Distillery Safety, Process Safety|Comments Off on Ethanol: What Are the Limits?

Spilt Whiskey: What a Waste

“You have to be prepared to take a spill.”  — Shaun White Not long ago, a friend and I were watching a movie where one of the characters, despondent and bereft, stumbled down the street while clutching a bottle of spirits. As the character unlocked the door to his home, the bottle slipped from his [...]

By |2025-11-06T11:15:06-06:00July 17th, 2025|Chemicals, Craft Distillery Safety, Process Safety, Workplace Safety|Comments Off on Spilt Whiskey: What a Waste

Recordkeeping for Process Safety: Permit Retention

“A memorandum is not to inform the reader but to protect the writer.”  — Dean Acheson A reader asked me “How long do I need to keep confined space entry permits for a covered process?” He knew my thoughts on retaining hot work permits and wondered if the same approach applied to other permits in [...]

By |2025-07-10T09:32:30-05:00July 10th, 2025|Procedures, Process Safety, Process Safety Management|Comments Off on Recordkeeping for Process Safety: Permit Retention

Quantifying Consequences: RQs

“Quantity and persistence will get you the outcomes you need.”  — James Altucher One of the challenges of process hazard analysis is risk assessment. To determine whether additional risk reduction is required, the team must quantify the risk and compare it to risk tolerance criteria. For the risk tolerance criteria to be useful to the [...]

By |2025-07-03T14:53:11-05:00July 3rd, 2025|Chemicals, PHA, Process Safety|Comments Off on Quantifying Consequences: RQs

Hazard Communication: Does Whiskey Need an SDS?

“Whisky making is an act of cooperation between the blessings of nature and the wisdom of man.”  — Masataka Taketsura While on a tour of a craft distillery, the distiller (and owner) and I got to talking about the safety aspects of distilling whiskey. The question of whether whiskey needed an SDS came up. It [...]

By |2025-11-06T11:15:52-06:00May 15th, 2025|Chemicals, Craft Distillery Safety, Procedures, Process Safety|Comments Off on Hazard Communication: Does Whiskey Need an SDS?
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