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Nice Ice | National Geographic


so I did all that research and I learned
how to make my ice cubes clean and
delicious but I still didn’t know how to
get them super clear like glass then I
was remembering all these ice fishing
movies that I used to watch sometimes
lake ice is so clear you man you can see
fish swimming underneath it and I know
it’s not clear like how the ice cores
are clear because of thousands of tons
of pressure or whatever so what I wanted
to know is how can lake ice be so clear
so I went to south Bristol Maine to meet
Ken and Ken’s mustache Ken and his
friends meet once a year to practice the
age-old tradition of harvesting
authentic American lake ice I did it you
get it see before mechanical
refrigeration was invented in the
nineteenth century the only way to get
ice was to harvest it they would store
the ice in these buildings ice houses
and then they would ship it all over the
world I mean olden times were completely
bonkers how many ice houses were there
in Maine back at every farm had one and
how many ice houses are there now we are
the one and only you’re a dying breed
those of you watching with color
televisions will notice there’s a white
top layer of ice now that’s not actually
ice that’s snow but underneath the snow
is some of the clearest ice I’ve ever
had the pleasure of sucking the good
Claire Isis is what you want why do you
want the clear ice it lasts longer this
naturally frozen ice will outlast
manufactured ice 2 or 3 to 1 is that
true it’s very true yeah because I’m
into making ice cubes that are clear
yeah and I just wanted them to be clear
because I thought it looked cool but
you’re telling me well actually if they
not clear there’s a lot of air in it and
it does not last as long bingo
freezer ice is cloudy because of trapped
air bubbles and ken told me his lake ice
is clear because the way it freezes
eliminates air bubbles the ice starts
freezing on top and freezes down so lake
ice freezes from the top down yeah
and that unidirectional freezing process
it helps keep the bubbles away
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