I have here a box of Tasti Mega Nuts Double Choc "6x Big 40g Bars", well, there were 6 but one got eaten already.
Anyway, I happened to grab one out of the box and thought "you know, I wonder, do these weigh 40g".
I have a set of precision digital scales for weighing leds and such (easier to weigh than count), so I took one and weighed it. And another. And another...
Average weight of those 5 bars left in the pack, 33.22g, 17% less than advertised.
And that's Gross including the plastic wrap, which clearly has printed on it "40g Net".
So I thought, it seems unlikely but maybe my scales are up the wop. I checked on the kitchen (spring dial) scales by weighing the bars all together, about the same result, very under weight.
To compare with another product, I took a "Mother Earth Baked Oaty Slices" bar from it's box, it's also supposed to be 40g, and weighed it on my precision scales, 42g, indeed, it's noticeably heavier than the "40g" Tasti bar, by a lot more than 2g.
I'm seriously thinking that this should probably be forwarded onto whoever is the appropriate authority, surely a product being 17% less than the weight on the packet can't be within accepted tolerances, can it? I imagine if I just wrote to Tasti then they'd probably just put it in the round-filing-bin.
I guess it could be an isolated incident (although it they make being "Big 40g Bars" a big selling point you'd think they'd take more care), perhaps some other readers here have some Tasti snack bars and scales handy? Chime in with your findings!
The Photographic Evidence