Hello everyone,
We had an induction cooktop installed, and both of us are quite sensitive to the magnetic field. My wife and I both notice it while the cooktop is running, experiencing a pressure-like sensation in our heads.
We have now looked at other induction cooktops, and while the effect is less noticeable with some of them, it is still sometimes perceptible. Now we are considering switching to a traditional cooktop.
What are your thoughts on this? Are you familiar with this phenomenon? Overall, I find induction very practical, but in the long term, it seems too problematic for us given our sensitivity.
We had an induction cooktop installed, and both of us are quite sensitive to the magnetic field. My wife and I both notice it while the cooktop is running, experiencing a pressure-like sensation in our heads.
We have now looked at other induction cooktops, and while the effect is less noticeable with some of them, it is still sometimes perceptible. Now we are considering switching to a traditional cooktop.
What are your thoughts on this? Are you familiar with this phenomenon? Overall, I find induction very practical, but in the long term, it seems too problematic for us given our sensitivity.
Benutzer200 schrieb:
P.S. One more question. If you react to the electromagnetic field of the cooker like that, how do you respond to a microwave, a monitor, or a hairdryer?
Their electromagnetic field strength is often several times higher (microwave about 4 times stronger at a distance of 1 meter (3 feet), hairdryer about 4-5 times stronger at 30 cm (12 inches) away). Did you measure that yourself? Because I’m a bit skeptical.
A well-known couple once went to a fertility clinic. It turned out the man had some issues. One of the doctors’ questions was whether the man cooked using an induction hob...
If you consider the height of a countertop, the cooking surface is only a few centimeters away from the gonads and ovaries — in extreme cases as close as 10 cm (4 inches). At 100 cm (3 feet) away, the field strength drops to (1/10)² = 1/100 of the strength right at the cooker. So you shouldn’t compare it based on that distance, because that would be misleading. The relevant field strength is rather at about 10 cm (4 inches). And that is quite intense!
Out of curiosity, after the conversation I measured the whole house with a proper EMC (electromagnetic compatibility) meter — router, hairdryer, laptop, oven, microwave, etc. — and also our induction hob.
After the induction hob, there was a long gap until the laptop showed up as a distant second in field strength. An induction hob can draw up to 7000 watts, while a microwave only up to about 800 watts — and the microwave has a shielding cage, whereas the induction hob’s field is exposed.
In our new house, we chose a halogen/glass-ceramic hob instead. We were still not completely done with our family planning anyway 😉
I don't want to offend anyone, BUT if, besides the issue with the induction cooktop, you also physically "sense" something from a microwave, you should generally be aware of some background noise in your head. Even the wiring in the house emits some radiation since it is not fully shielded.
There are many studies on this topic that also consider psychological factors – the general consensus is: "If people expect a field, those who are so-called electrosensitive feel unwell."
However, in your case it doesn’t really matter: if the induction cooktop makes you feel unwell, just install something different.
There are many studies on this topic that also consider psychological factors – the general consensus is: "If people expect a field, those who are so-called electrosensitive feel unwell."
However, in your case it doesn’t really matter: if the induction cooktop makes you feel unwell, just install something different.
B
Benutzer20018 May 2022 09:51Scout** schrieb:
Did you measure that yourself? Because I find that hard to believe.No, I am relying on studies:Scout** schrieb:
An induction cooker has up to 7000 watts, whereas even a microwave only has a maximum of 800 W, and it has a shielding cage while the induction cooker is "open."However, the field is "captured" exactly there by the appropriate pots and pans, so less radiation spreads to the right, left, and beyond.
"Tesla" is the unit for static magnetic fields. Even magnetized steel has such fields. However, in all the practical applications mentioned here, we are dealing with time-varying electric and magnetic fields, so there are not only magnetic flux densities but also electric flux densities. And very importantly: power densities, measured in W/cm² (watts per square centimeter). This factor also needs to be considered, but the illustration does not address it at all.
Another factor that varies significantly is the distance. For the diagram above: When using a microwave oven, I am unlikely to be only 3 cm (1 inch) away from the magnetron, and when using a drill, I would more likely hold it about 30 cm (12 inches) from my head, and so on.
But for now, let’s focus only on the magnetic fields:
The ICNIRP guidelines from 1998 established a reference value for magnetic flux density of 6.25 µT (microtesla) based on published studies at that time, applying a safety factor of 50.[9] The 2010 guidelines, benefiting from improved data from more recent publications, were able to reduce the safety factor to 10 and thus set the reference value at 27 µT...
The tested devices complied with the then-current ICNIRP reference value of 6.25 µT at a horizontal distance of 30 centimeters (12 inches) from the device during intended use, according to applicable measurement standards. At realistically shorter horizontal distances, this value was sometimes exceeded: at 1 centimeter (0.4 inch) in front of the device, measurements reached up to 10 µT, and to the sides and rear, up to 26 µT. ... Directly above the cooktop, immediately next to the cookware, significantly higher flux densities of up to 84 µT were recorded. When used improperly—for example, with cooking utensils that are too small, not centered on the cooking zone so that the zone is not fully covered, with cookware that has an uneven base, or with materials that are not ferromagnetic—stronger stray fields also occur.
Another factor that varies significantly is the distance. For the diagram above: When using a microwave oven, I am unlikely to be only 3 cm (1 inch) away from the magnetron, and when using a drill, I would more likely hold it about 30 cm (12 inches) from my head, and so on.
But for now, let’s focus only on the magnetic fields:
The ICNIRP guidelines from 1998 established a reference value for magnetic flux density of 6.25 µT (microtesla) based on published studies at that time, applying a safety factor of 50.[9] The 2010 guidelines, benefiting from improved data from more recent publications, were able to reduce the safety factor to 10 and thus set the reference value at 27 µT...
The tested devices complied with the then-current ICNIRP reference value of 6.25 µT at a horizontal distance of 30 centimeters (12 inches) from the device during intended use, according to applicable measurement standards. At realistically shorter horizontal distances, this value was sometimes exceeded: at 1 centimeter (0.4 inch) in front of the device, measurements reached up to 10 µT, and to the sides and rear, up to 26 µT. ... Directly above the cooktop, immediately next to the cookware, significantly higher flux densities of up to 84 µT were recorded. When used improperly—for example, with cooking utensils that are too small, not centered on the cooking zone so that the zone is not fully covered, with cookware that has an uneven base, or with materials that are not ferromagnetic—stronger stray fields also occur.
Tolentino schrieb:
The electric shaver really surprises me.All devices that contain motors and possibly heating coils as well.
I also think it’s important to differentiate the frequencies here. Personally, I’d rather be exposed to a 1 kW 50 Hz field than a 1 kW field in the GHz range 😎
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