The benefits of Liquid Nitrogen Dosing
att the
th bottling
b ttli line
li
Lee Cotten & Scott Shepard
Cryotech International, Inc.
„
„
„
„
„
Manufacturer with service &
i t ll ti
installation
department
d
t
t
Specializing in LN2 delivery systems
Offices in Campbell, S. California,
Albany,
Albany Philippines
Representatives in the UK, Australia,
N
New
Zealand,
Z l d Mexico,
M i
South
S th America,
A
i
China, South Africa, India
Est. 1978, located in Campbell,
California
What is this about?
„
„
„
Screwcaps leave larger headspace
21% oxygen in headspace (air) will
disperse into wine
Oxygen will raise the dissolved
oxygen and deteriorate the wine
What can be done?
By using liquid nitrogen dosing, the
residual oxygen left in the headspace
can be reduced to as little as .5%
5%
(typically 1%1%-4%)
-78% of the air we breath is nitrogen
Oxygen results (Constellation)
Oxygen Results (Joel Gott)
Control
1 day
11 days
8 weeks
DO
0.28
0.20
0.94
DO
0.25
0.15
0.27
No Dose
D
Dose
with
ith LN2
How about just using gas?
•Line
Li
S
Speed:
d 100 CPM
CPM, d
dwell
ll ti
time-4.5
4 5 sec
•Head Space: ~30 ml
•Head Space
p
Oxygen
yg
with nitrogen
g g
gas: 10 – 13%
•Head Space Oxygen with liquid nitrogen: 1.5 – 2.8 %
Marlborough Bottling, Renwick, NZ
How about using just gas?
Unshaken BottleBottleDO from filler
Shaken Bottle
Bottle-With gas purge
Shaken Bottle
Bottle-With LN2 dosing
.87 DO
1 58 DO
1.58
.91 DO
81%
increase
4.5%
increase
Cloudy Bay Sauvignon Blanc
Blanc-- Marlborough Valley, NZ
How do we do it?
„
„
„
LN2 will turn into a gas when it
touches anything warmer than
itself -320F
LN2 expands to gas 700 times its
volume
A drop
d
off LN2 into
i t the
th headspace
h d
of a filled bottle will push the air
out leaving
l
i
only
l nitrogen.
i
Here’s a demonstration of
how LN2 pushes the air out
of a wine
o
e bottle……………..
bott e
Equipment--Ultradoser
Equipment
Testimonial
"In my opinion, the addition of your
Cryotech liquid nitrogen dosing system
to the bottling line resulted in the
single
g most significant
g
improvement in
product quality during my 33 year
tenure. You can bet the ranch that a
C
Cryotech
t h system
t
will
ill be
b on the
th
equipment list of every bottling line I
spec "
spec.
Chas Catherman, Former ViceVice-President of St.
Julian Wine Company
Thank y
you for
f attendingg
Cryotech
y
International,, Inc.
Lee Cotten & Scott Shepard