About white powder
Since this leather is very oily, the oil component that oozes out from the pores may become white powder depending on the temperature, humidity and ventilation conditions.
This is the same phenomenon as bridle leather bloom, etc., not a product defect.
It is especially noticeable in winter, when the temperature is low, and it may look like a mold, but it can be easily wiped off with a soft cloth. (Parts that are difficult to remove finely, such as stitches, disappear when heated.)
These symptoms are one of the good properties of oily leather. We appreciate your understanding.