Now our largest bread manufacturer plans to change the formulas of their breads so they last longer - and that's what you will be forced to buy.

Our soft chewy daily bread is set to become very hard to swallow. Yesterday's bread, fit for the bin, could soon be left on the supermarket shelf for up to two weeks.

Scott Driscoll, President of the United Retail Federation, says shoppers are in for a shock.

"We're going to have to get used to old bread that's just been sitting on the shelf for a couple of weeks," Driscoll said.

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The biggest savings trick played by our supermarkets could become a thing of the past. No longer will supermarkets be selling off today's bread at massive discounts.

Australia's largest bread manufacturer wants to end daily fresh bread deliveries. Goodman Fielder - makers of our top sellers including Wonder White, Mighty Soft, Helga's, Vogel's, Lawson's and Freya's - is looking at extending the shelf-life from the current 2 or 3 days to 10 to 14 days.

Driscoll says Goodman Fielders will be forced to ditch daily bread because of the fierce price wars being fought by Coles and Woolworths, using $1 bread as a loss leader.

"Like long-life milk, there will be long-life bread. Daily bread will be fortnightly bread. They're making bread last 2 weeks in Europe so they want to do it here," Driscoll said.

Goodman Fielder won't divulge its new plans or how they'll make bread last 2 weeks - but they told us they collect unsold bread from supermarkets at the end of every day for pig food or breadcrumbs. But by extending the shelf-life they can reduce deliveries and collections - a massive cost saving.

Fresh bread hass become a super food. Hi-tech milling processes release the healthiest nutrients from the grain layers - iron, zinc, and B-group vitamins. But will bread that's made to last a long time lose that goodness?