hello I'm Matt and in this video we're
going to be making an instant ice cream
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maker the way this works is pretty
unique as far as ice cream makers go as
this top tray is super cooled by dumping
the heat into the water surrounding it
allowing water like you see here to
start freezing almost immediately and
ice cream to be made in just a few
minutes now this might sound a little
bit complicated but it's actually super
simple to build so before we start
making some ice cream with this here's
how to construct one so there are three
main components we'll need for this
build a heat sink a tray and some
Peltier elements these Peltier elements
are basically heat pumps when
electricity is applied they shove heat
from one side of the plate to the other
this process means that while one side
is kept very cold the other gets
extremely hot which is what the heat
sink is for this needs to be quite
substantial in size as it's got a lot of
heat to contend with as both of these
items aren't something you're likely to
find locally I've placed International
purchasing links to them in the
description as for the tray it can be
roughly the same size as the heat sink
and it needs to have a flat Underside so
that it touches the heat sink evenly I'm
just going to use a butter tray but it's
not too specific so choose anything that
you can find that suitable so the first
thing to do is get some heat paste add a
blob of it to the heat sink and and then
squash the Peltier elements down on top
with the tech side facing
upwards once they're all on we can add
yet more heat paste on top and then
squash on the tray itself which can then
be secured in place with cable ties
these need to be really tight for good
thermal contact so you may require the
help of a clamp and
pliers once this is done we can tidy up
the cables to do this we can simply
thread one side through to the other and
group them by color with that done the
last thing to do is sort out the power
supply as all six Peltier elements draw
about 400 wats we need to use a pretty
beefy power source luckily computer
power supplies have been able to deliver
this kind of power for a long time so
you should be able to pick up a
secondhand unit for very little money I
happen to have a 1,000 watt server PSU
on hand so I'm going to be using this
instead the power Supply's 12vt output
can simply be hooked up to the Peltier
elements with red being POS positive and
black being negative I'm using an xt60
connector in between so that they can be
disconnected easily now if you do use a
standard computer power supply like I
mentioned earlier you can find a guide
on how to wire it up in the
description so now we're ready to try it
out now as you might have noticed this
channel is called DIY perks and not
cooking perks so I'm not actually that
great at cooking so we'll see how this
goes um thankfully the recipe does
appear to be quite simple uh so even I
might not mess it up so uh the first
thing to do is get some whipped cream
this is like well we're going to whip
this cream this is double cream so we'll
empty about half of it into a
bowl a that's a lot of cream um I'll go
with a quarter for now actually don't
want to make too much and uh just use a
whisker to uh whisk it now you could
obviously do this by hand but can't be
bothered to wait for that so we'll just
uh use modern technology for
now right so I think that's done so that
means we need to add about 100 G of
sweetened condensed milk this is all
very approximate really it's not very
precise so we've got like a quarter of
this which is a 397 G can and a quarter
of that which is say 600 mL can oh dear
this is making such a
mess that's part of the fun so we'll
again just uh mix this together so that
should be the base of the ice cream and
to this we can add any pretty much any
flavor we like so I'm just going to add
a bit of vanilla to the flavoring um to
add some
flavor so now that that's all mixed in
with the flavoring um it's time to put
it in the ice cream maker itself so I'll
just move these to one side so before
this gets turned on we need to add the
water um because obviously this heat
sink is going to get incredibly hot and
that heat needs to to go somewhere so it
gets basically dumped into this water so
we need to just fill the whole thing up
to about the top of the heat sink and
now we can add the ice cream mixture to
the
tray
and plug it
in so now what's going to happen is this
tray is going to get really cool and
hopefully freeze the ice cream mixture
okay so this has been going for about 2
minutes now and as you can see that's
pretty Frozen the Top's still a bit
squishy but the actual uh underneath is
really quite nice sceny so that's really
good I'll just spread that out a bit
give it an extra minute and
hopefully we'll be
ready okay so that's looking good that's
pretty solid so now it's time to put it
into the bowl and this needs to be done
extremely quickly as uh the heat from
the heat sink will very quickly transfer
into the ice cream if you're not fast
enough so we'll just unplug
it
and
bill so I've only made a tiny amount as
you can see but not
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bad now texture-wise it's not going to
be exactly the same as proper churned
ice cream but taste-wise it just tastes
really good quite rich and flavorsome
and uh one of the best advantages of
being able to make ice cream so quickly
is you can actually experiment a lot
with the flavor for example earlier I
tried making some carrot ice cream which
actually tasted pretty good you could
even use it to make some ice in under 5
minutes if you want to cool down your
drink which is pretty cool as well now I
hope you've enjoyed this video it's been
quite fun for me to make cuz it's been
quite different other than that I'm Matt
and you've been watching DIY perks I
hope I see you next
time if you'd like to see another of my
projects then why not check out how to
make this super smooth camera slider
which is a fantastic way of getting
really cinematic shots on the cheap
alternatively why not check out another
projects involving Peltier elements this
time using them to generate electricity
and charge a phone they're both worth a
watch so I hope you enjoy
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them