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Generation of quality in the products
At the moment of harvesting the trees in the forest those that
show fungus or insect attacks or abnormal growth, such as screw
shaped fiber, are rejected. In a similar fashion when the logs arrive
at the factory those that are suspect of fungus or insect attacks
are rejected.
The thickness and texture of the plywood are continuously inspected
during the veneering process. The veneer is then submerged in boiling
water to establish the basic sanitary conditions of the product.
The quality control inspector and the machine operator check continuously
the product that comes out of the punching presses to insure that
the product has the correct shape and dimensions.
Drying is the next step. It takes place at a temperature higher
than 100 degrees centigrade and lasts about 18 minutes. At the end
of the process the sticks have 8 to 12% humidity and are free of
bacteria and fungus. The quality control inspector takes random
samples of the product at the discharge of the dryer.
The products are polished and waxed afterwards. In the case of the
ice-cream sticks, waxing is indispensable for the adequate handling
of the product in the automatic ice-cream making machinery. Festa
S. A. uses carnauva wax, a product approved by the FDA, which is
automatically fed in the polishers in very small quantities, approximately
0.05 Kg. per ton of finished product.
The products that require dimensional precision, in the tenth millimeter
range, because they are used in the automatic machines of ice-cream
manufactures are inspected and packed one by one by electronic computerized
sorting machines. Manual or lower technology sorting does not guarantee
the correct handling of the sticks in the ice-cream inserters. Each
machine has an operator permanently to keep an eye on the resulting
quality. The electronic quality sorting checks the following parameter:
dimension, curving, chipped ends, cracks, warp, zig-zag, thickness,
color and contour.
A quality control inspector checks permanently the output of the
sorting machines to make sure that the machines keep within the
established tolerances. If he finds deviations he stops the sorting
until the machine is set up again. The suspect product is resorted
or rejected.
As the spoons have less stringent dimensional requirements the sorting
process takes place visually on a conveyor belt to control warp,
color and shape. The spoons are fed directly to the packing machines,
which carry out a heat sealing process. The strips are inspected
to guarantee the quality of the product.
The sorting of the tongue depressors is carried out visually on
conveyor belts also.
All personnel of the section of sorting and packing of ice-cream
sticks and spoons as well as tongue depressors must wear caps, masks,
latex gloves and ear protectors. Furthermore they must wash their
hands with antibacterial soap or cream before their enter the section.
Each step in the production of toothpicks and cloth pins is controlled
in a similar fashion to the one applied to the products mentioned
above. A hundred per cent visual inspection is carried out at the
end of the process and any defective product is rejected.
The packed products are inspected at random. They are sent to the
warehouse if they pass the inspection.
The cartons are carefully glued and security taped to prevent variations
in humidity or the entrance of dust or any other contaminant.
The cartons are marked in each section with an identification code
to determinate production date, machine and operator code, type
of product and content of the carton.
The cartons are stored in a dry and cool place to prevent the growth
of microorganisms.
A specialized laboratory carries out a microbiological inspection
at regular intervals. The tests measure bacteria, yeast and fungus
levels which must be kept within accepted international standards.
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