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Winemaking (rec.crafts.winemaking) Discussion of the process, recipes, tips, techniques and general exchange of lore on the process, methods and history of wine making. Includes traditional grape wines, sparkling wines & champagnes.

Checking for clarity



 
 
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  #16 (permalink)  
Old 25-11-2004, 12:03 AM
Bob
Usenet poster
 
Posts: n/a
Default

"gene" wrote
Now for the 'more than you ever wanted to know' explanation...
Turbidity is the technical term for the clarity or lack thereof in a
liquid. And it is measured as the ratio of intensity of the light
scattered perpendicular to the beam divided by the intensity of the
light which passed through the liquid from the light source to the side
opposite of the beam (i.e. on-axis).


A laser is perfect for this. Mine was 2.99 and worth $50....

Gene



  #17 (permalink)  
Old 28-11-2004, 05:53 PM
R-D-C
Usenet poster
 
Posts: n/a
Default

OK,

I got around to doing this. Shining through the red wine from right to left
I can see the beam crossing the wine. If I shine towards myself I can see
the light but it is hazy.

The black cherry is a different story. Shining across I see nothing.
Amazingly though, the wine is so dark that shining towards me I also see no
light coming through at all!

"gene" wrote in message
. com...
J Dixon wrote:
A bright light on the opposite side of the carboy is useful. Also siphon
a
bit off and put it in a glass remembering that the wine is generally
clearer
at the top.
John Dixon
"R-D-C" wrote in message
...

Carrots?

Just kidding. I tried shining a torch through it but not sure what I am
looking for. I can see the torch through the wine but still am not sure


if

it is classed as clear or not. I am pretty new to this.


"Stephen SG" wrote in message
...

How would one see at night.

Stephen SG
"R-D-C" wrote in message
...
| Hi,
|
| how do people go about checking if their wines are clear? I have a


red

and
| a black cherry that are so dark I can't see through the jars. Any


tips

| anyone can give?
|
| Cheers
|
| R-D-C
|
|






on the opposite side? Shining a light in my face just makes me blind :-)

I put my bright, 'spotlight' beam of light perpendicular to where I'm
looking, and move the beam slowly from top to bottom of the carboy. If I
can see the light beam in the wine, then it's got some cloudiness.

Now for the 'more than you ever wanted to know' explanation...
Turbidity is the technical term for the clarity or lack thereof in a
liquid. And it is measured as the ratio of intensity of the light
scattered perpendicular to the beam divided by the intensity of the light
which passed through the liquid from the light source to the side opposite
of the beam (i.e. on-axis).

Gene



  #18 (permalink)  
Old 28-11-2004, 05:53 PM
R-D-C
Usenet poster
 
Posts: n/a
Default

OK,

I got around to doing this. Shining through the red wine from right to left
I can see the beam crossing the wine. If I shine towards myself I can see
the light but it is hazy.

The black cherry is a different story. Shining across I see nothing.
Amazingly though, the wine is so dark that shining towards me I also see no
light coming through at all!

"gene" wrote in message
. com...
J Dixon wrote:
A bright light on the opposite side of the carboy is useful. Also siphon
a
bit off and put it in a glass remembering that the wine is generally
clearer
at the top.
John Dixon
"R-D-C" wrote in message
...

Carrots?

Just kidding. I tried shining a torch through it but not sure what I am
looking for. I can see the torch through the wine but still am not sure


if

it is classed as clear or not. I am pretty new to this.


"Stephen SG" wrote in message
...

How would one see at night.

Stephen SG
"R-D-C" wrote in message
...
| Hi,
|
| how do people go about checking if their wines are clear? I have a


red

and
| a black cherry that are so dark I can't see through the jars. Any


tips

| anyone can give?
|
| Cheers
|
| R-D-C
|
|






on the opposite side? Shining a light in my face just makes me blind :-)

I put my bright, 'spotlight' beam of light perpendicular to where I'm
looking, and move the beam slowly from top to bottom of the carboy. If I
can see the light beam in the wine, then it's got some cloudiness.

Now for the 'more than you ever wanted to know' explanation...
Turbidity is the technical term for the clarity or lack thereof in a
liquid. And it is measured as the ratio of intensity of the light
scattered perpendicular to the beam divided by the intensity of the light
which passed through the liquid from the light source to the side opposite
of the beam (i.e. on-axis).

Gene



  #19 (permalink)  
Old 28-11-2004, 11:10 PM
gene
Usenet poster
 
Posts: n/a
Default

Your cherry seems to be a marvelous light absorber.

Try shine it along a thinner path through the wine... instead of across
the diameter?


Top view of DJ:
_
. .
.-----------. ------- shine your light here
. .
. .
. .
. - - - - ( ) - - - - . -- instead of here
. / .
. neck of DJ .
. .
. .
. _ .

If that doesn't work, guess you'll just have to get a much brighter
light. Any halogen spotligtht available? Bright white LED? Laser?

Gene

R-D-C wrote:
OK,

I got around to doing this. Shining through the red wine from right to left
I can see the beam crossing the wine. If I shine towards myself I can see
the light but it is hazy.

The black cherry is a different story. Shining across I see nothing.
Amazingly though, the wine is so dark that shining towards me I also see no
light coming through at all!

"gene" wrote in message
. com...

J Dixon wrote:

A bright light on the opposite side of the carboy is useful. Also siphon
a
bit off and put it in a glass remembering that the wine is generally
clearer
at the top.
John Dixon
"R-D-C" wrote in message
...


Carrots?

Just kidding. I tried shining a torch through it but not sure what I am
looking for. I can see the torch through the wine but still am not sure

if


it is classed as clear or not. I am pretty new to this.


"Stephen SG" wrote in message
...


How would one see at night.

Stephen SG
"R-D-C" wrote in message
...
| Hi,
|
| how do people go about checking if their wines are clear? I have a

red


and
| a black cherry that are so dark I can't see through the jars. Any

tips


| anyone can give?
|
| Cheers
|
| R-D-C
|
|





on the opposite side? Shining a light in my face just makes me blind :-)

I put my bright, 'spotlight' beam of light perpendicular to where I'm
looking, and move the beam slowly from top to bottom of the carboy. If I
can see the light beam in the wine, then it's got some cloudiness.

Now for the 'more than you ever wanted to know' explanation...
Turbidity is the technical term for the clarity or lack thereof in a
liquid. And it is measured as the ratio of intensity of the light
scattered perpendicular to the beam divided by the intensity of the light
which passed through the liquid from the light source to the side opposite
of the beam (i.e. on-axis).

Gene




  #20 (permalink)  
Old 29-11-2004, 05:12 PM
Bob
Usenet poster
 
Posts: n/a
Default


"R-D-C" wrote in message
...
OK,

I got around to doing this. Shining through the red wine from right to

left
I can see the beam crossing the wine. If I shine towards myself I can see
the light but it is hazy.


You definitely need to wait a while longer.

The black cherry is a different story. Shining across I see nothing.
Amazingly though, the wine is so dark that shining towards me I also see

no
light coming through at all!


You =should= be able to see the glowing filament of the bulb in the
torch. You probably still have some suspended materials.

"gene" wrote in message
. com...
J Dixon wrote:
A bright light on the opposite side of the carboy is useful. Also

siphon
a
bit off and put it in a glass remembering that the wine is generally
clearer
at the top.
John Dixon
"R-D-C" wrote in message
...

Carrots?

Just kidding. I tried shining a torch through it but not sure what I

am
looking for. I can see the torch through the wine but still am not

sure

if

it is classed as clear or not. I am pretty new to this.


"Stephen SG" wrote in message
...

How would one see at night.

Stephen SG
"R-D-C" wrote in message
...
| Hi,
|
| how do people go about checking if their wines are clear? I have a

red

and
| a black cherry that are so dark I can't see through the jars. Any

tips

| anyone can give?
|
| Cheers
|
| R-D-C
|
|






on the opposite side? Shining a light in my face just makes me blind

:-)

I put my bright, 'spotlight' beam of light perpendicular to where I'm
looking, and move the beam slowly from top to bottom of the carboy. If I
can see the light beam in the wine, then it's got some cloudiness.

Now for the 'more than you ever wanted to know' explanation...
Turbidity is the technical term for the clarity or lack thereof in a
liquid. And it is measured as the ratio of intensity of the light
scattered perpendicular to the beam divided by the intensity of the

light
which passed through the liquid from the light source to the side

opposite
of the beam (i.e. on-axis).

Gene





  #21 (permalink)  
Old 29-11-2004, 07:34 PM
R-D-C
Usenet poster
 
Posts: n/a
Default

I guess I will wait a bit longer then. Weird though, the cherry is really
dark right to the top and has been standing for about 8 weeks. Hang on a
minute.....



.....runs upstairs.....



.....just checked again. At the neck it is a VERY dark red. If I switch the
lights off I can just see the filament through the width of the demijohn.
Seems reasonably uniform top to bottom with it being just a little less
visible (the torch) near the bottom of the demijohn.



"Bob" wrote in message
...

"R-D-C" wrote in message
...
OK,

I got around to doing this. Shining through the red wine from right to

left
I can see the beam crossing the wine. If I shine towards myself I can
see
the light but it is hazy.


You definitely need to wait a while longer.

The black cherry is a different story. Shining across I see nothing.
Amazingly though, the wine is so dark that shining towards me I also see

no
light coming through at all!


You =should= be able to see the glowing filament of the bulb in the
torch. You probably still have some suspended materials.

"gene" wrote in message
. com...
J Dixon wrote:
A bright light on the opposite side of the carboy is useful. Also

siphon
a
bit off and put it in a glass remembering that the wine is generally
clearer
at the top.
John Dixon
"R-D-C" wrote in message
...

Carrots?

Just kidding. I tried shining a torch through it but not sure what I

am
looking for. I can see the torch through the wine but still am not

sure

if

it is classed as clear or not. I am pretty new to this.


"Stephen SG" wrote in message
...

How would one see at night.

Stephen SG
"R-D-C" wrote in message
...
| Hi,
|
| how do people go about checking if their wines are clear? I have a

red

and
| a black cherry that are so dark I can't see through the jars. Any

tips

| anyone can give?
|
| Cheers
|
| R-D-C
|
|






on the opposite side? Shining a light in my face just makes me blind

:-)

I put my bright, 'spotlight' beam of light perpendicular to where I'm
looking, and move the beam slowly from top to bottom of the carboy. If
I
can see the light beam in the wine, then it's got some cloudiness.

Now for the 'more than you ever wanted to know' explanation...
Turbidity is the technical term for the clarity or lack thereof in a
liquid. And it is measured as the ratio of intensity of the light
scattered perpendicular to the beam divided by the intensity of the

light
which passed through the liquid from the light source to the side

opposite
of the beam (i.e. on-axis).

Gene







  #22 (permalink)  
Old 30-11-2004, 05:37 PM
Bob
Usenet poster
 
Posts: n/a
Default


"R-D-C" wrote in message
...
I guess I will wait a bit longer then. Weird though, the cherry is really
dark right to the top and has been standing for about 8 weeks. Hang on a
minute.....



....runs upstairs.....



....just checked again. At the neck it is a VERY dark red. If I switch

the
lights off I can just see the filament through the width of the demijohn.
Seems reasonably uniform top to bottom with it being just a little less
visible (the torch) near the bottom of the demijohn.

Yes, you are definitely getting there!!!!! :-) The real kicker is when
you cannot see the beam =in= the liquid. If you can see it as a line passing
through, that means it is illuminating particles still in suspension.

"Bob" wrote in message
...

"R-D-C" wrote in message
...
OK,

I got around to doing this. Shining through the red wine from right to

left
I can see the beam crossing the wine. If I shine towards myself I can
see
the light but it is hazy.


You definitely need to wait a while longer.

The black cherry is a different story. Shining across I see nothing.
Amazingly though, the wine is so dark that shining towards me I also

see
no
light coming through at all!


You =should= be able to see the glowing filament of the bulb in the
torch. You probably still have some suspended materials.

"gene" wrote in message
. com...
J Dixon wrote:
A bright light on the opposite side of the carboy is useful. Also

siphon
a
bit off and put it in a glass remembering that the wine is generally
clearer
at the top.
John Dixon
"R-D-C" wrote in message
...

Carrots?

Just kidding. I tried shining a torch through it but not sure what

I
am
looking for. I can see the torch through the wine but still am not

sure

if

it is classed as clear or not. I am pretty new to this.


"Stephen SG" wrote in message
...

How would one see at night.

Stephen SG
"R-D-C" wrote in message
...
| Hi,
|
| how do people go about checking if their wines are clear? I have

a

red

and
| a black cherry that are so dark I can't see through the jars.

Any

tips

| anyone can give?
|
| Cheers
|
| R-D-C
|
|






on the opposite side? Shining a light in my face just makes me

blind
:-)

I put my bright, 'spotlight' beam of light perpendicular to where I'm
looking, and move the beam slowly from top to bottom of the carboy.

If
I
can see the light beam in the wine, then it's got some cloudiness.

Now for the 'more than you ever wanted to know' explanation...
Turbidity is the technical term for the clarity or lack thereof in a
liquid. And it is measured as the ratio of intensity of the light
scattered perpendicular to the beam divided by the intensity of the

light
which passed through the liquid from the light source to the side

opposite
of the beam (i.e. on-axis).

Gene








  #23 (permalink)  
Old 01-12-2004, 03:16 PM
Miker
Usenet poster
 
Posts: n/a
Default

Perhaps 8 weeks is too short of time to expect clarity. 8 months is
more like when I would maybe start checking it for clarity.
 




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