Lamb chops are usually $46.50 per kilogram, but someone can buy a pack of 12 cents of lamb chops, 15 cents of boneless roast chicken, 9 cents of family sponge cake, 6 cents of branded yogurt, almost free.
Supermarkets tend to give almost free food to arrive or close to the best food date, selling as little money as possible, better than throwing it in a trash can.
And these discount food has a lot of loyal followers, can help the family save a lot of money.
Facebook groups like Markdown Addicts Australi gather shrewd shoppers who take photos of the special product po and tell their peers where they can save the most money.
This is not limited to food. There are also cheap clothes, 50 minutes a pair of flip-flops, discount home goods.
At Waterloo's Coles supermarket on Sunday, a shopper found a 97-cent potato salad and broccoli green leaves mixed with vanilla butter for only $1 rather than $5, and took photos to share with netizens.
At Narellan's Coles supermarket, the price of a pack of lamb meat dropped to 10 cents, and the price of kangaroo burgers dropped to 25 cents.
Before the end of business, Woolworths reduced the price of roasted chicken to 1.80 yuan per chicken.
In the past few days, it has been found that the price of Dairy Farmers 2 liters of milk has dropped to 48 cents, two days before it expires, with cherries priced at 75 cents per box and salad at 30 cents per pack. And super green fried (super green stir-fry packets) cut the price to 50 cents-saving 90% of the money.
One customer happily uploaded the cheap meat and yogurt she found and wrote, "it's great that there are six things that go down before the supermarket closes and they try to sell them before they throw them away."
A man says he often goes shopping 15 minutes before the supermarket closes. One night, he bought some yogurt drinks at 7 cents a unit price and three barbecue chickens at a unit price of 1 yuan.
Other examples include haloumi cheese for 49 cents, turkey stuffing for $1.50, fried meat for $2.25, pet food for 58 points, and six baked buns for 46 cents per pack.
Both Coles and Woolworths have strict food waste disposal systems and have partnered with philanthropic organizations such as OzHarvest and FoodBank to donate incoming food. But there are always perishable goods, and they usually try to sell them, not discard them.