The news today from Tesco is that they throw an enormous amount away from their stores and distribution centres and a similar amount gets discarded by their customers.
I presume surveys must have been carried out to see what householders admit to discarding.
I'm not surprised with the bagged salad. It has a very short life once opened and some of the in-store bread can go stale very quickly although we do try to use this up with soup.
I don't think we throw away anything like claimed, but inevitably some gets discarded and more so since we lost the dog (although she wouldn't have touched the salad and only ate the bread if we put it out for the birds).
Things I throw are Black Plums that do not ripen and just chucked out some nectarines for same reason, they shrivelled up before ripening. Tomatoes that go to water in days. But its not every week far from it that the above happens
Sometimes a cut loaf turns mildew. Occasional nectarine fruit goes soft. Not a lot really- we do freeze stuff if plans change (relatives no turning up after shopping done) To my wife's annoyance I use the "sniff" test and sometimes eat after the official "sell by or use by" date.
One of the biggest wastes has to be the BOGOF offers so we get round that by giving the extra, that we wouldn't normally buy, to one of our sons. They sometimes do the same for us so at least we do cut down on some of what would otherwise be wasted. Brown bananas get converted to banana loaves but some other fruit does tend to go off before we can consume it, again where it is as cheap to buy a packet of ten or so as it is to buy five loose.
I wonder how much of a contribution to this waste is the process of irradiation. Fruit and veg is nice and fresh and crisp when bought, but they very soon deteriate, unnaturally quickly, even after only a few days.