Western Australian researchers have launched Food Waste PRO, an online toolkit that helps small and medium food businesses measure their waste and judge whether reduction or upcycling ideas are technically, legally and financially viable, according to Phys. The tool is aimed at businesses, but the thinking behind it works in any kitchen. Here is how to borrow it: a simple way to see what you throw away, spot value in it, and decide whether an idea is worth your effort.
The reporting describes food waste as both a sustainability problem and a missed commercial opportunity, particularly as businesses face tighter margins and pressure to operate more efficiently. At home, the same logic applies to your grocery budget.
A note on scope: the details below about Food Waste PRO come from Phys's summary. The step-by-step audit that follows is general kitchen practice, my own suggestion rather than the toolkit's method.
Start by measuring, not guessing
The toolkit's first job, per the report, is helping businesses measure waste. That order matters. Most of us underestimate what we toss.
Try a one-week home version:
- Put a bowl or lidded container on the counter next to your bin.
- Every time you discard food, put it in the container first (or jot it on a note).
- Write down the item and roughly how much: "half a bunch of cilantro," "two heels of bread," "1 cup leftover rice."
- At the end of the week, group the list into categories: scraps from prep (peels, stems, ends), spoiled food, and leftovers nobody ate.
This takes about two minutes a day. Do not try to fix anything yet. You are collecting data.
Sort what you find into three buckets
Once you have a week of notes, patterns show up quickly.
Bucket 1: Prep scraps with real use
Broccoli stems, carrot tops, parmesan rinds, onion ends and herb stems are all edible or flavorful. A freezer bag labeled "stock" collects onion ends, carrot peels and celery trimmings until you have about 4 cups, then simmer them in 8 cups of water for 45 minutes to an hour.
Bucket 2: Food that spoiled before you used it
This is a buying and storage problem, not a cooking one. If cilantro wilts every week, buy less, or stand the stems in a jar of water. If bread goes stale, slice and freeze it.
Bucket 3: Leftovers that never got eaten
This points to portion size. Cook less, or plan a second meal on purpose: Monday's roasted vegetables become Tuesday's frittata filling.
Look for the hidden value in "ugly" food
Bruised, misshapen or slightly soft produce is still good food. The Food Waste PRO coverage frames waste as a commercial opportunity, and the same idea holds at home: cosmetic flaws rarely affect flavor.
Quick ways to use imperfect produce:
- Soft bananas: Mash 3 ripe bananas into a batter for banana bread, or freeze peeled for smoothies.
- Wrinkled tomatoes: Roast at 200°C (400°F) for about 30 minutes with olive oil and salt, then blend into a sauce.
- Limp carrots and celery: Soak in cold water for 30 minutes to crisp up, or simmer into soup.
- Bruised apples: Cut away the bad spots and cook down with a splash of water for about 20 minutes into applesauce.
Use your senses. Mold, sliminess or a sour smell means it goes in the compost, not the pot.
Test an idea before you commit to it
The toolkit, per Phys, asks whether a solution is technically, legally and financially viable. Those three questions are a handy filter even for a home cook thinking about, say, selling jam at a market or just making a weekly batch of stock.
Is it technically doable?
Do you have the equipment, time and storage? A dehydrator project that needs 8 hours and counter space you do not have is a poor fit. Stock in a pot you already own is an easy one.
Is it allowed?
For home use, this mostly means food safety: cool leftovers promptly, refrigerate within two hours, and use stock within about 4 days or freeze it. If you want to sell anything, check your local food-business rules first. Those vary by place, so confirm with your local authority.
Does it pay off?
At home, "pay off" means saving money or time. A simple check: what would this cost to buy, and what does it cost you to make? Homemade stock from scraps is nearly free, while store-bought cartons add up. If a project costs more in ingredients and effort than it saves, skip it.
Make one change, then re-measure
Pick the biggest category from your week and change one habit. If scraps led the list, start the stock bag. If spoilage did, shrink your next shopping list by one item you usually toss. Run the container experiment again the following week and compare.
That is the core of what the Western Australian researchers are offering businesses: measure first, then decide what is worth doing. Do it this week with one bowl on your counter.