And it’s a simple switch experts say could slash grocery bills by nearly half. Are supermarket own brand products any good? “Choice test results show that supermarket own brand products can taste and perform as well as, and sometimes better than equivalent national brand products, so lower prices don’t necessarily mean lower quality,” she says. “At $102.50, the Aldi brand basket was cheapest,” she says. Laundry detergents: Aldi Trimat Advanced Concentrate Laundry Liquid Front scores similarly to leading brand Dynamo’s products, but is less than half the price.