First world problems: ‘People feel very strongly about their tomatoes’ Fruit flies are a factor in warm climates like Brisbane and Florida

Michael Pollan is an entertainer from a long line of American hucksters.

He’s not a professor, he’s a decent writer of food porn.

powell-tomato(Those with the least qualifications most actively seek the perceived credibility of a title.)

When his biggest soundbite is “I’d never eat a refrigerated tomato,” the absolutism shines through like any other spoiled demagogue.

Dan Charles of NPR fell into the gotta-be-cool trap without knowing shit, but eventually admitted it.

Charles says, There’s a laboratory at the University of University of Florida, in Gainesville, that has been at the forefront of research on tomato taste. Scientists there have been studying the chemical makeup of great-tasting tomatoes, as well as the not-so-great tasting ones at supermarkets.

“There’s a lot of things wrong with tomatoes right now,” says Denise Tieman, a research associate professor there. “We’re trying to fix them, or at least figure out what’s going wrong.”

These researchers studied this refrigeration question. They looked at what happened when a tomato goes into your kitchen fridge, or into the tomato industry’s refrigerated trucks and storage rooms.

Some components of a tomato’s flavor were unaffected, such as sugars and acids. But they found that after seven days of refrigeration, tomatoes had lower levels of certain chemicals that Tieman says are really important. These so-called aroma compounds easily vaporize. “That’s what gives the tomato its distinctive aroma and flavor,” she says.

The researchers also gave chilled and unchilled tomatoes to dozens of people to evaluate, in blind taste tests, “and they could definitely tell the difference,” says Tieman. The tomatoes that weren’t chilled got better ratings.

The scientists also figured out how chilling reduced flavor; cold temperatures actually turned off specific genes, and that, in turn cut down production of these flavor compounds.

Tieman speculates that someday scientists will figure out how to keep those genes turned on, even when chilled, so the tomato industry can have it both ways: They can refrigerate tomatoes to extend shelf life, without losing flavor.

tomatoThankfully, chilling didn’t seem to affect nutrition – the chilled tomatoes were just as nutritious as the non-refrigerated ones.

The new findings appear in this week’s issue of the Proceedings of the National Academy of Sciences.

As significant as the results are, they probably won’t end the great tomato refrigeration debate.

“It’s not so clear cut,” says Daniel Gritzer, culinary director at SeriousEats.com, a food website. Two years ago, he did a series of blind taste tests with many different tomatoes, in New York and in California.

“Sometimes I found that the refrigerator is, in fact, your best bet,” says Gritzer.

That’s especially true for a tomato that’s already ripe and at peak flavor, he says. If you let that tomato sit on your counter, it’ll end up tasting worse.

Gritzer wrote a long blog post, detailing his results, and got a flood of reaction. “Some people wrote to say, ‘Hey, this is what I’ve always found, I’m so glad you wrote this,'” Gritzer says. “And then, a lot of people pushed back saying, ‘You’re insane, you don’t know what you’re talking about.'”

And when the hockey kids call me Doug, I say that’s Dr. Doug, I didn’t spend six years in evil hockey coaching land to be called Mister.

22 sickened; outbreak of Staphylococcal food poisoning from a military unit lunch party

I’ve never served in the military but am proud of the work I’ve done with the U.S. military over the years on food safety training, and have met a lot of great people.

But, as the U.S. Centers for Disease Control reports, on July 30, 2012, the emergency department at a military hospital was visited by 13 persons seeking care for gastrointestinal illness with onset 2–3 hours after a work lunch party. The hospital responded by opening up temporary evaluation and treatment capacity in primary-care clinics and a progressive-perlo.sausagecare unit and by diverting one patient to a local civilian hospital. An immediate outbreak investigation was conducted by local military public health personnel with assistance from CDC. Initial epidemiologic analysis implicated “perlo” (a chicken, sausage, and rice dish) and bacterial intoxication as the outbreak mechanism. This enabled public health personnel to 1) recommend no further consumption of perlo and 2) reassure appropriate authorities that no additional ill persons likely would be seeking care and advise that nothing more than supportive care of ill persons likely would be required.

After interviewing party attendees, investigators found nine additional persons who met their case definition. Subsequent CDC laboratory analysis of a sample of perlo detected staphylococcal enterotoxin A, supporting the epidemiologic findings. Improper food handling and preparation measures were identified and addressed by the appropriate authorities, who provided additional detailed education on food preparation safety for the persons who prepared the meal.

On July 29, the raw chicken thighs and sausage were defrosted in the microwave. The defrosted chicken thighs were cooked in a stock pot of boiling water. After cooling, the chicken was removed from the thigh bones by hand and placed back into the stock pot. Sausage was cooked in a skillet and added to the pot. Onions and other seasonings were sautéed in the sausage oil and added to the pot. To complete the perlo, rice was added to the stock pot and cooked until all remaining water was absorbed. The pot of cooked perlo then was placed in an unheated oven for approximately 8 hours overnight. On the morning of July 30, the perlo was found to be warm. It was transferred to a slow cooker for reheating for approximately 1 hour on a high setting before transport and consumption.

Don’t leave food, especially rice, at room temperature for eight hours. Put it in the fridge. Must not have had a military food safety type at this party, because they know their stuff.

Dubai supermarkets start direct food safety messaging at deli counters

Dubai is hot, with daytime highs at this time of year regularly exceeding 40C (104 F). Local public health types determined that with the super shopping mega malls, people were buying food, placing it in the incubators they called cars, and then some more leisurely shopping.

So, after a few meetings, all supermarkets in Dubai will now be offering warnings, similar to these, regarding ready-to-eat foods. The sign says, ‘Cold Food Consume Immediately Or Refrigerate Within One Hour.’

Cool stuff.