The neutralized washed oil is pumped to the Bleacher. Prior to taking charge in the bleacher the vacuum is created in the bleacher with the help of low vacuum equipment through catch all. When the full vacuum is attained in the bleacher, hot oil is sprayed in the bleacher with the help of sprayers under the vacuum. There by evacuating moisture and soap particles coming along with the oil. Simultaneously the agitation is going on in the bleacher to agitate the mass for subsequent drying of the oil. Ones the charge is taken in the bleacher the oil heated gradually by the steam. The mass as being stirred by the agitator when the desired temp. is achieved the mixture of predetermined quantity of fuller earth and activated carbon is sucked in the system with the help of vacuum. After mixing of bleaching agent with oil and simultaneously heating the oil up to desired temp. The bleaching reaction starts and is continued till it is over. The oil earth mixture is then pumped to the Filter Press. The filtered oil from the Filter Press is taken to the BOT by gravity.