Originally Posted by
Fulcrum
I hope you are joking.
I'd imagine rice varies a bit with moisture content and things like that,
and the factory's willingness to put forth the effort to get it down to exact 1.00 kg.
Try water, because that's how a kilogram works. One litre equals one kilogram.
Weigh your bar.
My plates were reading all over the place, but the bar (which is made made a long standing reputable company) was 20.0 kg on the dot.
....so seeing that, I opted not to bother with double checking with water.
Also, modern digital scales are fairly accurate.
The fact you said "dial" above is also worry some.