Last Updated：2025/12/30
Sentence
One
of
the
main
reasons
fridge
temperatures
are
recommend
to
be
set
at
5ºC
is
because
of
listeria.
Listeria
is
a
food
poisoning
bacterium
that
is
psychrotrophic
–
in
other
words
it
likes
cold
temperatures.
From
the
growth
models,
we
know
that
listeria
grows
nearly
twice
as
fast
at
8°C
as
it
does
at
5°C,
hence
the
recommended
5ºC,
which
helps
keep
us
safe
from
listeria.
Quizzes for review
One of the main reasons fridge temperatures are recommend to be set at 5ºC is because of listeria. Listeria is a food poisoning bacterium that is psychrotrophic – in other words it likes cold temperatures. From the growth models, we know that listeria grows nearly twice as fast at 8°C as it does at 5°C, hence the recommended 5ºC, which helps keep us safe from listeria.
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