Cloistered nuns work overtime to bake altar breads, or communion wafers, for Philly papal Mass

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A group of cloistered nuns has been working overtime in the kitchen to help Philadelphia church officials prepare for Pope Francis' visit.

Religious sisters at the suburban Monastery of St. Clare recently made 100,000 communion hosts for the pontiff's outdoor Mass on Sept. 27.

The sisters known as Poor Clares help support themselves by baking the wafers, also called altar breads. They have about 200 customers across the U.S. and Canada.

It took two months of working extra shifts to fill the papal order. Other groups are supplying additional hosts for the Mass, which could attract up to 1.5 million pilgrims.

As an enclosed community, the nuns don't leave the monastery except for medical reasons. But sisters say the archbishop gave them permission to attend the pope's Mass.