Refrigerator drawer holes are always a problem, but a lot of them are due to a combination of design flaws, according to a new study.
A recent study published in the journal Science showed that over 70% of the refrigerator drawer holes were made of materials with the chemical group N-nitrogen-dioxide (N2N), which is the culprit behind the problem.
“It’s an area where there’s a lot to be concerned about,” said Dr. Joseph Tresco, a chemist who studies microbial problems at Rutgers University in New Jersey.
“These things tend to be porous and the material that they’re made of has a higher permeability than the other materials in the refrigerator.
It’s very, very challenging to make them smaller.”
Researchers found that the number of holes in refrigerators ranged from 1.5% to 3.5%, with a median of 4.5%.
“The bigger the number, the more likely the problem is that the material is N2N, and it’s going to cause problems,” Trescom said.
“I think it’s important to be aware of these types of problems.”
The researchers found that about one-third of the N2Ns in the drawers were produced by plants and microbes.
That’s a far higher proportion than most people might expect.
The researchers looked at a variety of N2NS and found that plants are far more likely to use N2NH as an ingredient in their N2O molecules than most of us.
“The majority of the plants that use N3N, N2H and N2OH are actually in fact making synthetic N2S [sulfur] and N3H [carbon] compounds that are in a similar class as those that we’ve made,” Treto said.
“They’re in a way much more like our products than we are.”
The next step is to investigate how these synthetic N3NH are produced, and to determine how much of them have been absorbed by the human body.
“We’re interested in the biological effects of these compounds, whether they cause disease, and whether they can cause the same thing with other compounds,” Tregos said.
One potential explanation is that N2NO is used to form polymers.
In that case, a synthetic N1N could be used to make a N2.
“It’s the same principle,” Tredos said, but with a different molecule.
But there are other possible explanations.
One of them is that many of the bacteria in our bodies are making N2 molecules to help their cells grow.
“The question is: are there other molecules that could be contributing to this?”
In other words, are these bacteria in the human digestive tract making N3NO to produce N2 and NNO?
“It could be that they are, but it’s really unclear,” Treco said.
What can we do?
One of the solutions could be to change the shape of the drawer drawer.
For example, the researchers suggest making the drawer slightly narrower and more rounded.
They also suggest that manufacturers make the drawer less rigid, and that they add more mesh around the drawer to improve its water repellency.
The study is a collaboration between Rutgers University, the University of Maryland, the Johns Hopkins University School of Public Health and the Johns Davis Cancer Center.
The Associated Press contributed to this report.