How to pronounce 冷水 in Cantonese (5 out of 6):

再用冷水沖麵, 令拉麵保持最佳口感
And then you wash the dough with cold water to keep the dough smelling better.

Cantonese Sentence Breakdown

zoi3
again
jung6
to use
to employ
to have to
to eat or drink
expense or outlay
usefulness
hence
therefore
to apply
to operate
function
to spend
to make use
to serve as
to eat
to drink
with
to need
to exert
effect
with this
冷水 laang5 seoi2
cold water
cung1
(of water) to dash against
to mix with water
to infuse
to rinse
to flush
to develop (a film)
to rise in the air
to clash
to collide with
to soar
to neutralise
to offset
to wash away
min6
flour
noodles
dough
ling6
to order
to command
an order
warrant
writ
to cause
to make sth happen
virtuous
honorific title
season
government position
your esteemed
a polite way to address 'your' (especially when referring to one's family members such as parents or siblings)
a short tune(old)
laap6
jumbled
保持 bou2 ci4
maintain
最佳 choi3 gaai3
best
口感 hau2 gam2
taste