do i need to cal this scale everytime i turn it on or is just checking it with the weights fine. still looking for it to be very accurate? thanks for the help.

Recalibrate every time you power it up.... Too many variables. Temp, humidity to name a few...

It only takes a minute.

I agree it takes very little time to check.. also be aware any backround noise like music can affect the powder drop, This has been my experance.

Matt

You'll get the same replies from pretty much everbody I'm sure. Calibrate it everytime, it only takes a few seconds.

Ken....