I’ve been going on about this for ages, but look - here it is in infographic form (see previous post). Australia does pretty well with production based losses because of our infrastructure and high tech supply chains, but we’re massive wasters. Try not to buy more than you need. Try not to buy meat without purpose. Try not to buy fruit and veg that will just sit there uneaten. Try not to throw out fruit and veg just because it isn’t perfect. Try not to throw out things that are still fine but past their use by date (hello milk with a 20 AUG use by date in my fridge and in my tea). Eat leftovers (leftovers are awesome). Don’t feed prime cuts to your animals. If you eat meat you should do it with some sense of what it actually is (it’s a animal that was killed for your pleasure/sustenance) and take care not to waste it. Composting organic waste is great if that means the nutrients will stay in the food production cycle (some fertilisers used by farmers are finite, and are lost from the system if they sit in landfill).
I don’t expect people to make breadcrumbs (or French toast!) from bread crusts, or freeze yoghurt and fresh produce (coconut milk works really well), or use bones for stock. I do but that’s my thing. My mother and grandmother are both big preservers, and a few of my family still hunt for meat, so I grew up with it. I’m an ag scientist. Thinking about this is what I do. I get that time is a consideration as much as money. Making stock is a bit of a faff. Going to the supermarket more than once a week might not be an option. But avoiding buying a pack of mince and then letting it sit in the fridge until it spoils is pretty easy.
Unfortunately it’s not as simple as the food we waste could be eaten by someone else. You knew your parents guilting you with starving kids in Africa was silly, as you threatened to scrape your half eaten spag bol into an envelope and send it to them. Distribution of food is another issue, and stopping waste isn’t going to magically help with that. But there are benefits to the environment, to the sustainability of food production, to the future of humanity (if you’ll let me get dramatic), and to your food budget too.