A resizing material made from scraps of parchment.
It is prepared by boiling 21 grams of parchment
scraps soaked in 2 1/2 liters of water for 45
minutes, or longer if a stronger size is required.
It is used at a temperature of 35 to 45°
C. for resizing archival papers that have been
washed. An alkaline buffering agent is sometimes
added to the size to provide an alkaline reserve
in the paper.