I bought 175 g pack of salami which had 162 g of salami as well.
this post was submitted on 06 Feb 2024
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Sup, I'm your local friendly USDA contractor who very much uses scales everyday. Consumer grade kitchen scales are terrible and will lie to you. The fact that it does not go out to the tenths or hundredths is a big flag for accuracy.
We check test our scales twice a year to make sure they are accurate. I once tried check testing my kitchen scale I use for canning for giggles and it failed miserably. It would only register weight on 2 out of 4 quadrants until I got to 10g or so. I'm sure my ohaus is going to show a different and more accurate result if I where to try it.
please actually do it. Not for any real Reason but just because it's funny to use professional equipment to weigh Pasta
Eight grams off? That seems rather significant. I mean we use to buy 20 grams of weed we'd know if it was almost half shy.
8g sure but this is only within 2% error. most scales would probably be within 3% so this isn't surprising
You would presumably use a higher precision scale for that purpose. I know my kitchen has a large scale that's only 1 g precision but can go up to 8 kg, and one that's .01g precision but only goes up to 500g.
Unless you were using a certified scale and checking it with certified check weights every time you used it, you were just guessing and hoping your dealer wasn't randomly or purposely off. And density of the material weighed matters also. Weed is far less dense than pasta so a discrepancy can be more noticeable since it takes a larger volume of weed to reach a particular weight than pasta does.
Understand that a digital kitchen scale is made with the cheapest load sensors a manufacturer is willing to pay for. Nor do they come with any kind of traceable certification as to accuracy class. In fact you get no guarantee that your shiny new kitchen scale is fit for even that purpose - just that it turns on, lights up, and displays something when you place a load upon it.
Accuracy is a cruel and VERY expensive mistress to chase. And most people don't understand it anyway.
that's why you don't use a scale that's only accurate to the full gram (and barely that) when dealing with something where the cost is such that a missing half gram actually makes a difference.
Dealers digital scales have 2 decimal places.
Well you were high so we can't be sure about those numbers
I wasnt at the time but twenty minutes later, sure
Now, I agree with you that if you believe a home kitchen scale is telling the truth, you are a fool. But as an old toolmaker who dabbled in accuracy for a living, displayed digits does not equal accuracy nor even repeatability. And there can be a fair amount of interpretation involved in analog beam scales.
I think it's just another PPS, (piss poor scale), scale that is neither accurate nor repeatable. And the packaging material weights are rarely included in listed weights. Since packaging can change at any time due to costs.
Well, it can't be packaged to scientific standards, it has to be packaged to ours.
Scale accuracy was never a problem or scrutinized until ow, and successfully helped people lose weight, so it's not the accuracy of the scales that is an issue.
This is blatant consumer fraud and nothing in your field can change that fact, clearly.
This just doesn't make sense.
You wouldn't say the same when talking about other products. If you buy ibuprofen for example you wouldn't say "it can't be packaged to scientific standards, it has to be packaged to ours" if you try to weigh a single pill with your kitchen scale.
Stuff HAS to be packaged to scientific standards. Period.
If your tools at home aren't accurate enough or simply aren't properly calibrated for a specific job, it can't be the fault of the producer.
If you use a 2€ kitchen scale that is 10 years old you can't blame the producer if your measurement is off by 10%.
The producer cannot make sure YOUR equipment is proper for the task, and they can't make sure EVERYONES scales see the exact same. So of course they have to weigh with their own scales and surprise surprise they use extremely precise scales that are properly calibrated and tested regularly.
If you read his comments to my comments he states that following "their" (?) standards, the producers have to put much more product in order to """"adjust"""" for the tolerance error of random consumers. Clueless.
I think you're a bit off track. scale accuracy has been a subject of careful scrutiny for millenia. You absolutely have to use the right tool for the job. A kitchen scale is not the right tool for the job. It would be like complaining that you can't take your car's lug nuts off with a pipe wrench.
Your comment doesn't make sense, since home tools are not precise enough and that is not the manufacter fault. I suggest you read about Metrology
That is scientific standards for him, not "their" standards or whatever. Yeah clueless.
I remember being in school 20 years ago and being taught about scale inaccuracies and the importance of frequent calibration. The thing about weight loss is that you will lose weight if you're in a deficit. Your daily calorie needs are going to fluctuate a little bit, regardless. Most people don't keep activity the exact same, sleep the exact same, take exactly the same steps everyday, plus hormones fluctuate, etc. Your measurements don't have to be precise, just close enough. People have also lost weight with sloppy volumetric measurements, counting out chips, or even eyeballing the amount of space taken up on their plate. MyPlate.gov was rolled out after consumer research found that it works.
Scales used for commercial purposes, such as weighing the amount of product in a package, are regularly calibrated and checked. Messing with the calibration is considered an economic crime and comes with very harsh penalties.
What!?