We make sugar paste shapes and store them in plastic containers for later use In a few days the shapes soften and are inclined to droop How might we overcome this problem
If your containers are not sealed then the sugar paste shapes can take up moisture from the atmosphere. Generally the relative humidity of the atmosphere indoors is in the range 40-70% and so sugar paste shapes with a low ERH will absorb atmospheric moisture. You should try to minimise the headspace in the container used to store the shapes to limit the mass of water available for absorption by the paste.
It is possible that the formulation of the sugar paste contains too much humectant for your requirements. Try reducing the proportion until the ERH is in the range 75-78%.
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