Material and method
Plai used in this study is a statistical fresh from the farmers in Kamphaeng Saen district. Nakhon Pathom Live the Pylos Kamal in process cleanliness. The initial moisture content and find the by the drying in the oven at 103 ° C is time 72 hour .
Finding the equilibrium moisture content. The Plai fresh cut or of the a thin piece size than width × length × high of the 5 × 5 × 2 mm3 and paste on the grill inside glass bottles sealed. Which contain saturated salt solution six of which will be the the humidity the temperature the system as shown in Table 1 were glass bottles attend the baked at a temperature of 35, 40 and 50 ° C. respectively, during the trial the point assemble the pieces weigh out every 48 hours until the weight of the pieces assemble not change. Then assemble the pieces to the moisture on the an oven at 103 ° C time is 72 hours.