Discount supermarket Aldi is doubling down on its "Good Different" strategy, committing to a permanent price drop to 10 per cent of products sold in its everyday grocery range.

The German-owned supermarket announced this morning it was committing to reducing the prices on family staples such as free-range eggs, tasty cheese and mince.

Price reductions on these products would be as high as 30 per cent and come in the wake of in-house research that showed one in five Australians have felt they could not afford their weekly grocery shop.

Aldi Australia's Managing Director Oliver Bongardt said the supermarket stood by its promise to Australians that it will not be beaten on price.