INICIO / BLOG
Calor, frío y lo que dice la evidencia
Artículos documentados sobre combustible para chafing, calentadores de inducción y hielo húmedo — los incidentes, los estudios y las cifras — y sobre lo que hacen posible el calor inalámbrico y el frío bajo cero. Cada pieza lleva sus fuentes.
Disaster and outage: keeping frozen goods frozen
When the freezer loses power, the clock starts. Pre-frozen cells buy hours for a home, a clinic or a small shop. The limits are stated.
Flame, cord or ice: an honest comparison
Where each option still wins, where each one fails, and the fourth column the trade catalogues leave out.
Beverages and wine service without an ice bucket
The ice bucket is a tradition and a puddle. A cold cell in a tabletop base chills the bottle and the table stays dry.
Keeping food hot in a power outage
When the power goes, hot food has a clock on it. Two ways to hold the line without combustion.
Fire marshals and open flame: what venues are quietly banning
Candles went first. Chafing fuel is following. Venue rules on open flame are tightening after every incident report, and they do not loosen again.
Refueling a live chafer is the single most dangerous thing your staff do all night
Industry safety guidance, a federal recall and a marine accident report all describe the same ten seconds. Here is what happens in them, and the training script most venues do not have.
Cold chain for the last mile: florists, cosmetics, chocolatiers, labs
Cut flowers, skincare demos, chocolate, lab samples: small businesses moving product that needs cool and dry, not wet and cold.
Eight hours at −10 °C: what a frozen cell changes for seafood display
Oysters on ice have a clock on them, a puddle under them and a hygiene study against them. A dry display at −10 °C for a full service rewrites all three.
Medical supplies in the field: what −10 °C is for, and what it is not
A cell at −10 °C keeps frozen supplies frozen. Put it next to a vaccine that must stay between 2 and 8 °C and you have destroyed the vaccine. Here is the honest scope.
Tableside fondue and hot pot at 110 °C without a burner
Fondue, raclette and hot pot put a heat source in front of the guest. Venues that ban open flame have been removing them from the menu. They can go back on.
Raw bar rules: how long can oysters sit on ice
Shellfish on an ice bed are on a clock from the moment they land. Here is how the clock works and what a −10 °C cell does to it.
Fishing, hunting, camping: the catch stays frozen
Wet ice in a cooler is a bath of water within hours. A pre-frozen cell keeps the box below zero and the catch dry.
Ice cream on the lawn: four hours solid, no freezer
A wedding dessert table in July has one enemy. A pre-frozen cell inside an insulated box holds it off for four hours.
Film sets, festival crews and field kitchens
Production catering, festival crews, site canteens and sports touchlines all share one condition: no power at the table and no tolerance for an open flame.
Emergency heat at home: the Sterno CO problem nobody mentions
Every power cut brings the same suggestion: keep a few cans of canned heat in the cupboard. The peer-reviewed case report says be careful what you do with them.
The slip-and-fall you did not see coming came from the ice bath
Every ice display drips. Every drip reaches a floor. Every wet floor in a public room is a claim waiting for a shoe.
2,000 cans a year: the waste stream under one hotel buffet
A breakfast line, every day, all year, is a pallet of steel cans and residual fuel going to landfill. The arithmetic is short.
Sports injuries: a cold source that lasts the whole tournament
Cold therapy needs 10 to 20 minutes, a barrier, and a pack that is still cold at the fourth match. A sub-zero cell inside an insulated wrap is a concept we are working on.
El cable que cruza el salón de baile
Every induction line is also an electrical installation, laid on the day, on a floor that will be wet by the end of service.
Meals on wheels, meals on time
Community meals and home delivery have to arrive hot after a route that takes hours. Cells inside an insulated carrier hold the temperature without a plug in the van.
El hielo es la forma más cara de estar frío
The machine, the water it drinks, the bags you buy when it runs out, and the person who hauls, spreads, drains and mops. Cost it per service.
A can of chafing fuel is a 6-hour fire you cannot see
Alcohol burns with a flame that is close to invisible in daylight. That is a property of the fuel, and no sign or training changes it.
Hot towels, no plumbing: oshibori and spa service on a cell
Warm-towel service needs a covered tray at around 60 °C for a few hours. A cell in a lidded buffet set does exactly that, anywhere.
Read your induction warmer manual: pacemakers, hearing aids, trip cords, shock
The safety section of a commercial induction buffet warmer's manual is more candid than any sales page. We quote it.
The environmental bill for a hotel buffet
One line, one year: steel cans to landfill, electricity for warmers and ice, potable water for ice, combustion products indoors. Assumptions shown.
Outdoor events on induction mean a generator
There is no outlet on a lawn. Induction outdoors means hauling a generator and everything that comes with it.
The 98-death hotel fire that started with chafing fuel cans
The Dupont Plaza fire of 1986 was deliberately set. What the arsonists used was a few opened cans of chafing fuel from the hotel's own stock.
154 people sick from one ice machine
A leaking valve in one Finnish ice machine put 154 people down with norovirus in 2016. Sixty-four contaminated machines were found across Cleveland care facilities in 2018.
100 gallons of water for 100 pounds of ice
Commercial ice is made from potable water, electricity and more potable water. The numbers are published by the people who sell the machines, and they are not small.
Pacemakers and induction: what the evidence says and why manuals still warn
A 2005 study set the safe distance at 50 centimeters. Later studies find the real-world risk low for modern devices. Manufacturers print the warning anyway. All three things are true.
Night feeds without the kitchen: a cordless bottle-warming concept
Guidance says warm milk to body temperature and never microwave it. Our current cell holds 80 °C. Here is the gap and what a product would need.
Hospital ice machines grew Candida and mycobacteria in every sample
A 2022 study of hospital ice machines found non-tuberculous mycobacteria and Candida species in every ice and water sample taken.
Who pays when a guest is burned at a buffet
Not legal advice. A plain description of the three ways a burn at a buffet becomes a claim, and why the flame is always in the file.
What an induction buffet line costs to run — and to wire
The warmer is the cheap part. The circuit, the electrician, the cords and the pans are the rest of the invoice.
Employee burns are the injuries nobody reports
A server singes a wrist swapping a can and says nothing. It is the most common injury on a buffet and the least recorded.
There is E. coli in the buffet ice. Here is the study.
A peer-reviewed survey of ice, ice chests and the machines that make them found faecal bacteria in one sample in fifteen. The cold buffet has a hygiene problem that has nothing to do with the food.
Wedding tents, dry grass and a can of alcohol gel
A marquee is fabric, a lawn is fuel, the guests are children and the service runs five hours. Here is the venue checklist that follows.
Melt water is where the salad bar goes wrong
Ice starts at zero and warms as it melts. The water it becomes has been in contact with everything above it.
When the power goes, so does the buffet
An induction line is only as reliable as the circuit it sits on. At events, that circuit is usually one socket and an extension lead.
1,000 ppm: the carbon monoxide reading above three cans of Sterno
Burning alcohol indoors is combustion indoors. A peer-reviewed case report measured what that means at the height of a serving table.
What your insurer asks after a buffet fire
Not legal advice. A description of the questions an insurer's investigator asks after an open-flame incident at a catered event, and what the answers cost.
Ten years of ice studies say the same thing
A 2024 review gathered a decade of research on the hygiene of food ice. The pathogens change; the finding does not.
Your open-flame policy is verbal. NTSB says that is how the fire started.
The federal report on the Spirit of Boston fire found the operator had no documented procedure for open-flame devices. Neither does your venue.
The true cost of a buffet heat source over three years
A cell costs more on day one and less every day after. Here is the model, and the assumptions, so you can put your own numbers in.
The $3.1 million can: how one chafing fuel canister burned a Boston dinner cruise
Federal investigators spent twenty-one months on a fire that started under a glassware cart. Their finding fits in one sentence, and every catering manager should read it twice.
Induction needs the right pan. Your buffet has the wrong ones.
Induction heats ferrous metal and nothing else. Most existing buffet pans, and every foil pan, produce no heat at all.
Invisible flame, visible scars: the 65 gel-fuel fires the CPSC counted
In 2011 the U.S. safety regulator recalled two million bottles of alcohol gel fuel after 65 fires. The chemistry under your buffet pan is the same. So is the way people get hurt.
The manufacturer made a safety video. That is the whole argument.
When a product the size of a tuna tin needs its own instructional safety film, the hazard is the product. We link the film in full.
What is actually in a can of chafing fuel
Methanol, ethanol or diethylene glycol, thickened or wicked. Each has a safety data sheet most operators have never opened.
Chafing fuel alternatives: what actually works
Gel, wick, induction, water-activated packs and cordless cells, compared on the four things that matter to an operator: hold time, safety, cost per pan and where each one fails.