The Secret of Fresh Bread

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WTF – keep your Bread Fresh: Bye Bye Moldy Bread

Keep your bread fresher for longer! Encapsulated potassium sorbate is a late acting preservative that prevents mold growth in yeasted bread. Hannah and Janie stress test this ingredient to see how long homemade breads could stay mold free, on this week’s episode of WTF. 

We Transform Food is a weekly series from Modernist Pantry exploring cool ingredients and gadgets that can help any chef transform food into more memorable experiences.


  • William R. Tasker
    April 5, 2023 1:44 pm

    My favorite bread is French bread. It is very easy and tastes great. The biggest problem is that it is good for just one or two days. It dries up too quickly. I want to see your video on how to stop it from drying it out. too soon.

  • Larry Munch
    April 5, 2023 3:12 pm

    A large sourdough boule retains more moisture than a baguette or batard and will not become stale if properly stored in a bread box for several days, but will develop mold after 3-4 days due in part to that same amount of moisture. This product along with SSL may help address both of these problems in these larger loaves.

  • Hi. Dies the encapsulated PS effect the taste of the bread? My favorite bread is pita and whole wheat bread.

  • Linda Manning
    April 5, 2023 4:44 pm

    My favorite bread is ciabatta, A high moisture dough.for sure but to keep fresh It needs to be put in the refrigerator which dries it out. This would be a good use for encapsulate PS. Would the long fermentation time affect the PS?

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