The process of biscuit grinding is very critical for biscuit manufacturing .Biscuits which are not
packed as final product due to following reasons are sent for biscuit grinding.
- Defective biscuits at oven end /stacker end , packing machine end .( gauge problem , weight
variation or shape problem.
These types of biscuits are transferred to biscuit grinding .Then these grounded biscuits are sent
to mixing area where these grounded biscuits are added as ingredients . Hence there is lots of
saving as we are utilising defective biscuits .
Care must be taken to add these grounded biscuit to the same type of variety of biscuit s.
Sometimes bakers add these grounded biscuits to enhance particular color of biscuit .Mixing operator
should also be careful about the quantity he add into the dough as excess quantity can alter the
characteristics of biscuit .
Metal detectors or magnets to be installed at infeed of biscuit grinder where metallic parts can
checked and prevented from going inside the grinder.
Biscuit grinders are of various type some are of stators and rotor type which hammers biscuits into
fine particles , where as others have drum assembly where biscuit are crushed .
Sugar grinding is required to convert crystal sugar into fine powder which is then put into
dough/batter for better mixing which gets reflected by better taste of products .Finer the sugar
powder better the taste . Mesh size varies from 180 -300 mesh size . Sugar can also be added in
solution form by making invert sugar .
Sugar grinders are available in market from 10kghr to 500kg/hr capacities .
sugar being hygroscopic the room where the grinding takes should be cool and dry place . Sugar
grinder should be earthed .Bag filters should be provided for collection of fine particles which other
wise would have been waste .Sugar grinder has got two basic component as rotor and stator .
Where rotors has hammers attached to it and these hammers on higher rpm crushes sugar into fine