On 02/03/2018 20:16, dennis@home wrote:
On 02/03/2018 11:37, Andy Burns wrote:
dennis@home wrote:

The machine weighs stuff so you can't put it on without scanning, very
few of them actually check the product weight against what is expected.

IME they all weigh the products and know the expected weight, the
problems come when you add e.g. one bag of quavers after a 4x2litre
pack of bottled water ...




They certainly do not know the weights.
They can't know the weights of prepacked fresh stuff for a start.

No, but there will be an acceptable range.

They will also know the overall weight before the next item is added, so
even light items can be assessed.