Bread in a can stays fresh for three years

A Japanese occupational therapy center has devised a canned bread product that stays fresh for three years without preservatives:

The group devised three flavorful recipes--chocolate chip; raisin and fruit; and a coffee, fruit and nut concoction. To ensure high quality, the bakers have the pH levels and level of moisture in cans checked monthly. Currently, the bakery produces only 500 cans a day, but it hopes soon to double that output.

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