Page 274 - Vessel Sanitation Program 2018 Operations Manual

VSP 2018 Operations Manual

13.16.3.2.7 High Wash/Rinse Temperature Factor
Factor the effect of the temperatures of the wash water and
pumped rinse into the evaluation if tank thermometers indicate
they are above 71°C (160°F).

If the wash and or rinse tank temperatures are greater than or equal
to 71°C (160°F), verify the final sanitizing rinse temperature using
one of the methods in section 13.16.3.2.9 or another ISOLATION
method where a rapid response TEMPERATURE-MEASURING
DEVICE is held at plate level in the final sanitizing rinse spray for
at least 8 seconds. The maximum-registering TEMPERATURE-
MEASURING DEVICE may also be checked at the end of each
part of the cycle to verify that the wash and rinse temperatures
have not been in excess of 71°C (160°F).

13.16.3.2.8 Effective Sanitation
Evaluate effective SANITIZATION by noting that in a mechanical
operation, the temperature of the fresh hot water sanitizing rinse as
it enters the manifold must not be more than 90°C (194°F) or less
than
• 74°C (165°F) for a stationary rack, single-temperature
machine.
• 82°C (180°F) for all other machines.
• 71°C (160°F) at the UTENSIL surface, as measured by an
irreversible registering temperature indicator.

13.16.3.2.9 Indirect Methods
The final rinse spray temperature may be indirectly evaluated by
using a nonreversible thermolabel attached to the manifold or final
rinse spray arm near the hub or by using calibrated melting
temperature wax crayons. Make a mark on a dry portion of the
final sanitizing rinse manifold or supply line with a crayon that
melts at 82°C (180°F) and another that melts at 91°C (195°F).

Another acceptable test to establish the final sanitizing rinse
temperature (manifold) is to dry the final sanitizing rinse spray arm
as near to the manifold entry into the machine as possible and affix
an 82°C (180°F) thermolabel. The thermolabel should be left in
place through one full warewash cycle. There may be slight
temperature decreases at positions distant from the manifold entry
into the machine.

A third method is to attach a maximum registering thermometer to
the end of a rod and hold the thermometer in the final rinse spray at
plate level for 8 seconds.

Annex 13.16: Warewashing Evaluation; 221