This note records a real situation
we encountered during sweet potato processing.

Originally, the sweetness was expected to increase.
However, a slight sour taste appeared after steaming.

After observation, we noticed:
– Higher moisture content
– Longer resting time before steaming
– Lower temperature during early processing

Instead of forcing adjustments,
we chose to slow down the process
and observe further changes.

This is not a final conclusion,
but a record from this stage.