This book became a treasure. We have been logging the condition of the 2 indigo vats on this diary book since we started the vat. Since the mid August, I became a bit lazy logging the vat digitally, but at least this log book is always logged when someone is there and taken care of the vat.
We take note of room temperature, PH of the vats, temperature of the vats, if it is mixed, the result of the color test, if things are added, and comments about the surface and smell of the vats. Recently was the vat is functioning and being used for dye, I also write down what has been dyed on that day.
