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How cans are made...

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General fitness, health and nutrition
Published
14 July 2007
Last activity
16 July 2007
Original author
Omelet
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  1. and why you should never cook in them.

    This is some really cool information.
    Both articles explain why the insides of ALL food cans are coated, both
    Aluminum and Steel:

    http://www.nd.edu/~ndmag/can1su00.htm

    Money quote:

    "To keep powdered metal out of a can's contents, Schmid says,
    manufacturers spray-coat the inside with a polymer dissolved in a
    solvent. When the can is heated, the solvent boils away, leaving only
    the protective polymer coating.

    The coating not only plasters any microscopic debris to the can wall and
    away from the food, it keeps the food from interacting with can
    material, an especially important consideration with steel cans.

    "Say you've got tomato soup in this steel can. You don't want that
    acidic soup corroding your can. It would kill your can, and the can
    would adulterate your food," Schmid says. "It's also why you're advised
    that when you go camping and you have Spaghettios you don't cook them in
    the can, because the polymer will degrade and you're going to be eating
    polymer." (Industry sources tell Schmid that the typical consequences of
    such a culinary blunder are headaches and constipation.)"

    http://www.aluminum.org/Template.cfm?Section=Can&NavMenuID=289

    Money quote:

    "8. Inside Spraying
    A specially selected coating is sprayed on the inside of the cans.

    9. Baking
    Cans are conveyed through a tunnel oven that bakes and cures the inside
    coating."
    --
    Peace, Om

    Remove _ to validate e-mails.

    "My mother never saw the irony in calling me a Son of a [censored]" -- Jack Nicholson

  2. Omelet said:

    and why you should never cook in them.

    This is some really cool information.
    Both articles explain why the insides of ALL food cans are coated, both
    Aluminum and Steel:

    http://www.nd.edu/~ndmag/can1su00.htm

    Money quote:

    "To keep powdered metal out of a can's contents, Schmid says,
    manufacturers spray-coat the inside with a polymer dissolved in a
    solvent. When the can is heated, the solvent boils away, leaving only
    the protective polymer coating.

    The coating not only plasters any microscopic debris to the can wall and
    away from the food, it keeps the food from interacting with can
    material, an especially important consideration with steel cans.

    "Say you've got tomato soup in this steel can. You don't want that
    acidic soup corroding your can. It would kill your can, and the can
    would adulterate your food," Schmid says. "It's also why you're advised
    that when you go camping and you have Spaghettios you don't cook them in
    the can, because the polymer will degrade and you're going to be eating
    polymer." (Industry sources tell Schmid that the typical consequences of
    such a culinary blunder are headaches and constipation.)"

    http://www.aluminum.org/Template.cfm?Section=Can&NavMenuID=289

    One of my friends, cooks sweetened condensed milk, right in the can on
    top of the stove. Considering these cans are coated on the inside,
    cooking in the can, does not sound like a good idea.

    Becca

  3. "Omelet" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    and why you should never cook in them.

    This is some really cool information.
    Both articles explain why the insides of ALL food cans are coated, both
    Aluminum and Steel:

    http://www.nd.edu/~ndmag/can1su00.htm

    Money quote:

    "To keep powdered metal out of a can's contents, Schmid says,
    manufacturers spray-coat the inside with a polymer dissolved in a
    solvent. When the can is heated, the solvent boils away, leaving only
    the protective polymer coating.

    [snips]

    Very helpful information. I had no idea.

  4. Becca said:


    Omelet said:

    and why you should never cook in them.

    This is some really cool information.
    Both articles explain why the insides of ALL food cans are coated, both
    Aluminum and Steel:

    http://www.nd.edu/~ndmag/can1su00.htm

    Money quote:

    "To keep powdered metal out of a can's contents, Schmid says,
    manufacturers spray-coat the inside with a polymer dissolved in a
    solvent. When the can is heated, the solvent boils away, leaving only
    the protective polymer coating.

    The coating not only plasters any microscopic debris to the can wall and
    away from the food, it keeps the food from interacting with can
    material, an especially important consideration with steel cans.

    "Say you've got tomato soup in this steel can. You don't want that
    acidic soup corroding your can. It would kill your can, and the can
    would adulterate your food," Schmid says. "It's also why you're advised
    that when you go camping and you have Spaghettios you don't cook them in
    the can, because the polymer will degrade and you're going to be eating
    polymer." (Industry sources tell Schmid that the typical consequences of
    such a culinary blunder are headaches and constipation.)"

    http://www.aluminum.org/Template.cfm?Section=Can&NavMenuID=289

    One of my friends, cooks sweetened condensed milk, right in the can on
    top of the stove. Considering these cans are coated on the inside,
    cooking in the can, does not sound like a good idea.

    Becca

    Nor does the process to begin with, since they sell a version of the SCM
    already cooked like that and ready to go.

  5. In article <[email hidden]>,

    Becca said:
    Omelet said:

    and why you should never cook in them.

    This is some really cool information.
    Both articles explain why the insides of ALL food cans are coated, both
    Aluminum and Steel:

    http://www.nd.edu/~ndmag/can1su00.htm

    Money quote:

    "To keep powdered metal out of a can's contents, Schmid says,
    manufacturers spray-coat the inside with a polymer dissolved in a
    solvent. When the can is heated, the solvent boils away, leaving only
    the protective polymer coating.

    The coating not only plasters any microscopic debris to the can wall and
    away from the food, it keeps the food from interacting with can
    material, an especially important consideration with steel cans.

    "Say you've got tomato soup in this steel can. You don't want that
    acidic soup corroding your can. It would kill your can, and the can
    would adulterate your food," Schmid says. "It's also why you're advised
    that when you go camping and you have Spaghettios you don't cook them in
    the can, because the polymer will degrade and you're going to be eating
    polymer." (Industry sources tell Schmid that the typical consequences of
    such a culinary blunder are headaches and constipation.)"

    http://www.aluminum.org/Template.cfm?Section=Can&NavMenuID=289

    One of my friends, cooks sweetened condensed milk, right in the can on
    top of the stove. Considering these cans are coated on the inside,
    cooking in the can, does not sound like a good idea.

    Becca

    I've read about that method for carmelizing sweetened condensed milk.
    Isn't that for some kind of Mexican recipe?
    --
    Peace, Om

    Remove _ to validate e-mails.

    "My mother never saw the irony in calling me a Son of a [censored]" -- Jack Nicholson

  6. In article <[email hidden]>, "cybercat" <[email hidden]>

    Quoted message said:

    "Omelet" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    and why you should never cook in them.

    This is some really cool information.
    Both articles explain why the insides of ALL food cans are coated, both
    Aluminum and Steel:

    http://www.nd.edu/~ndmag/can1su00.htm

    Money quote:

    "To keep powdered metal out of a can's contents, Schmid says,
    manufacturers spray-coat the inside with a polymer dissolved in a
    solvent. When the can is heated, the solvent boils away, leaving only
    the protective polymer coating.

    [snips]

    Very helpful information. I had no idea.

    Interesting stuff. :-)

    I've noted that the inside coating in cans of tomato paste is white.
    Same for some other canned items, so I thought I'd search it just for
    grins.

    Seems that ALL cans, even the inside of soda cans, have some kind of
    polymer coating to protect and seal the metal.
    --
    Peace, Om

    Remove _ to validate e-mails.

    "My mother never saw the irony in calling me a Son of a [censored]" -- Jack Nicholson

  7. Omelet said:


    In article <[email hidden]>,

    Becca said:
    Omelet said:

    and why you should never cook in them.

    This is some really cool information.
    Both articles explain why the insides of ALL food cans are coated, both
    Aluminum and Steel:

    http://www.nd.edu/~ndmag/can1su00.htm

    Money quote:

    "To keep powdered metal out of a can's contents, Schmid says,
    manufacturers spray-coat the inside with a polymer dissolved in a
    solvent. When the can is heated, the solvent boils away, leaving only
    the protective polymer coating.

    The coating not only plasters any microscopic debris to the can wall and
    away from the food, it keeps the food from interacting with can
    material, an especially important consideration with steel cans.

    "Say you've got tomato soup in this steel can. You don't want that
    acidic soup corroding your can. It would kill your can, and the can
    would adulterate your food," Schmid says. "It's also why you're advised
    that when you go camping and you have Spaghettios you don't cook them in
    the can, because the polymer will degrade and you're going to be eating
    polymer." (Industry sources tell Schmid that the typical consequences of
    such a culinary blunder are headaches and constipation.)"

    http://www.aluminum.org/Template.cfm?Section=Can&NavMenuID=289

    One of my friends, cooks sweetened condensed milk, right in the can on
    top of the stove. Considering these cans are coated on the inside,
    cooking in the can, does not sound like a good idea.

    Becca

    I've read about that method for carmelizing sweetened condensed milk.
    Isn't that for some kind of Mexican recipe?

    Yes and yes, however Eagle / Borden produces an already caramelized
    version of the SCM ready to use. I've seen this version in the Mexican
    section of my local Albertson's.

    Pete C.

  8. "Becca" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:
    Omelet said:

    and why you should never cook in them.

    This is some really cool information.
    Both articles explain why the insides of ALL food cans are coated, both
    Aluminum and Steel:

    http://www.nd.edu/~ndmag/can1su00.htm

    Money quote:

    "To keep powdered metal out of a can's contents, Schmid says,
    manufacturers spray-coat the inside with a polymer dissolved in a
    solvent. When the can is heated, the solvent boils away, leaving only
    the protective polymer coating.

    The coating not only plasters any microscopic debris to the can wall
    and away from the food, it keeps the food from interacting with can
    material, an especially important consideration with steel cans.

    "Say you've got tomato soup in this steel can. You don't want that
    acidic soup corroding your can. It would kill your can, and the can
    would adulterate your food," Schmid says. "It's also why you're advised
    that when you go camping and you have Spaghettios you don't cook them
    in the can, because the polymer will degrade and you're going to be
    eating polymer." (Industry sources tell Schmid that the typical
    consequences of such a culinary blunder are headaches and
    constipation.)"

    http://www.aluminum.org/Template.cfm?Section=Can&NavMenuID=289

    One of my friends, cooks sweetened condensed milk, right in the can on
    top of the stove. Considering these cans are coated on the inside,
    cooking in the can, does not sound like a good idea.

    Becca


    It's not. Considering they are also explosive. It's well documented that
    this treat should be made in other ways now but so many folks just don't
    want to hear.

    MoM

  9. "Pete C." <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:
    Becca said:


    Omelet said:

    and why you should never cook in them.

    This is some really cool information.
    Both articles explain why the insides of ALL food cans are coated,
    both
    Aluminum and Steel:

    http://www.nd.edu/~ndmag/can1su00.htm

    Money quote:

    "To keep powdered metal out of a can's contents, Schmid says,
    manufacturers spray-coat the inside with a polymer dissolved in a
    solvent. When the can is heated, the solvent boils away, leaving only
    the protective polymer coating.

    The coating not only plasters any microscopic debris to the can wall
    and
    away from the food, it keeps the food from interacting with can
    material, an especially important consideration with steel cans.

    "Say you've got tomato soup in this steel can. You don't want that
    acidic soup corroding your can. It would kill your can, and the can
    would adulterate your food," Schmid says. "It's also why you're
    advised
    that when you go camping and you have Spaghettios you don't cook them
    in
    the can, because the polymer will degrade and you're going to be
    eating
    polymer." (Industry sources tell Schmid that the typical consequences
    of
    such a culinary blunder are headaches and constipation.)"

    http://www.aluminum.org/Template.cfm?Section=Can&NavMenuID=289

    One of my friends, cooks sweetened condensed milk, right in the can on
    top of the stove. Considering these cans are coated on the inside,
    cooking in the can, does not sound like a good idea.

    Becca

    Nor does the process to begin with, since they sell a version of the SCM
    already cooked like that and ready to go.

    I didn't know that!!!. Not available in Canada, at least not where I
    live. I'll have to check it out when we are down in Texas.

    MoM

  10. Omelet said:
    Quoted message said:
    Quoted message said:

    One of my friends, cooks sweetened condensed milk, right in the can


    on top of the stove. Considering these cans are coated on the
    inside, cooking in the can, does not sound like a good idea.

    Becca

    I've read about that method for carmelizing sweetened condensed milk.
    Isn't that for some kind of Mexican recipe?

    I do that to make Banoffee pie. The instructions on the tin tell you to
    boil it.

  11. In article <[email hidden]>,

    Pete C. said:
    Quoted message said:
    Quoted message said:

    > http://www.aluminum.org/Template.cfm?Section=Can&NavMenuID=289

    One of my friends, cooks sweetened condensed milk, right in the can on
    top of the stove. Considering these cans are coated on the inside,
    cooking in the can, does not sound like a good idea.

    Becca

    I've read about that method for carmelizing sweetened condensed milk.
    Isn't that for some kind of Mexican recipe?

    Yes and yes, however Eagle / Borden produces an already caramelized
    version of the SCM ready to use. I've seen this version in the Mexican
    section of my local Albertson's.

    Pete C.

    I'll bet I can get it at Fiesta. :-)

    But, what is it used for?
    --
    Peace, Om

    Remove _ to validate e-mails.

    "My mother never saw the irony in calling me a Son of a [censored]" -- Jack Nicholson

  12. In article <[email hidden]>,

    Ophelia said:
    Omelet said:
    Quoted message said:

    > One of my friends, cooks sweetened condensed milk, right in the can
    on top of the stove. Considering these cans are coated on the
    inside, cooking in the can, does not sound like a good idea.

    Becca

    I've read about that method for carmelizing sweetened condensed milk.
    Isn't that for some kind of Mexican recipe?

    I do that to make Banoffee pie. The instructions on the tin tell you to
    boil it.

    Okay, ya made me google that one. :-)

    <http://www.foodnetwork.com/food/recipes/recipe/0,1977,FOOD_9936_33270,00
    ..html>

    Banoffee Pie
    Recipe courtesy Paula Deen
    Show: Paula's Home Cooking
    Episode: English Pub Fare
    1 1/2 cups graham cracker crumbs
    10 tablespoons butter, softened
    2 (14-ounce) cans sweetened condensed milk
    3 large bananas
    1 1/2 cups heavy whipping cream
    1/3 cup confectioners' sugar
    1 teaspoon vanilla extract

    Preheat oven to 350 degrees F.

    Mix graham cracker crumbs with softened butter and press mixture into
    9-inch pie plate. Bake for 5 to 8 minutes.

    Lower the oven to 300 degrees F for the toffee filling.

    To create toffee filling, caramelize the sweetened condensed milk. Pour
    the condensed milk into a 9 by 12 by 2-inch glass baking dish. Cover
    with foil and place dish inside a larger poaching pan. Add water to
    poaching pan until half way up sides of baking dish. Bake for 1 1/2
    hours.

    Once both the crust and toffee filling are cooled, spread half of the
    filling evenly inside crust. Slice the bananas and layer on top of
    filling. Pour remaining half of filling over bananas, spreading evenly.
    Whip the cream with the confectioners' sugar and vanilla and spread on
    top of toffee filling and bananas.
    --
    Peace, Om

    Remove _ to validate e-mails.

    "My mother never saw the irony in calling me a Son of a [censored]" -- Jack Nicholson

  13. Omelet said:

    In article <[email hidden]>,

    Ophelia said:
    Omelet said:

    >> One of my friends, cooks sweetened condensed milk, right in the
    >> can
    > on top of the stove. Considering these cans are coated on the
    > inside, cooking in the can, does not sound like a good idea.
    >
    > Becca

    I've read about that method for carmelizing sweetened condensed
    milk. Isn't that for some kind of Mexican recipe?

    I do that to make Banoffee pie. The instructions on the tin tell
    you to boil it.

    Okay, ya made me google that one. :-)

    <http://www.foodnetwork.com/food/recipes/recipe/0,1977,FOOD_9936_33270,00
    .html>

    Banoffee Pie

    Hehe but will you make it?

    I very occasionally make it for David but it is too sweet for me.

  14. In article <[email hidden]>,

    Ophelia said:
    Omelet said:

    In article <[email hidden]>,

    Ophelia said:

    Omelet wrote:
    >>> One of my friends, cooks sweetened condensed milk, right in the
    >>> can
    >> on top of the stove. Considering these cans are coated on the
    >> inside, cooking in the can, does not sound like a good idea.
    >>
    >> Becca
    >
    > I've read about that method for carmelizing sweetened condensed
    > milk. Isn't that for some kind of Mexican recipe?

    I do that to make Banoffee pie. The instructions on the tin tell
    you to boil it.

    Okay, ya made me google that one. :-)

    <http://www.foodnetwork.com/food/recipes/recipe/0,1977,FOOD_9936_33270,00
    .html>

    Banoffee Pie

    Hehe but will you make it?

    I very occasionally make it for David but it is too sweet for me.

    Maybe some year... ;-D
    --
    Peace, Om

    Remove _ to validate e-mails.

    "My mother never saw the irony in calling me a Son of a [censored]" -- Jack Nicholson

  15. Omelet said:

    In article <[email hidden]>,
    "Pete C." <[email hidden]> wrote:

    Quoted message said:
    Quoted message said:
    Quoted message said:

    > One of my friends, cooks sweetened condensed milk, right in the
    > can on top of the stove. Considering these cans are coated on
    > the inside, cooking in the can, does not sound like a good idea.
    >
    > Becca

    I've read about that method for carmelizing sweetened condensed
    milk. Isn't that for some kind of Mexican recipe?

    Yes and yes, however Eagle / Borden produces an already caramelized
    version of the SCM ready to use. I've seen this version in the
    Mexican section of my local Albertson's.

    Quoted message said:

    But, what is it used for?

    <http://en.wikipedia.org/wiki/Dulce_de_Leche>

    Brian

    --
    If televison's a babysitter, the Internet is a drunk librarian who
    won't shut up.
    -- Dorothy Gambrell (http://catandgirl.com)

  16. In article <[email hidden]>,

    Default User said:
    Omelet said:

    In article <[email hidden]>,
    "Pete C." <[email hidden]> wrote:

    Quoted message said:
    Quoted message said:

    > > One of my friends, cooks sweetened condensed milk, right in the
    > > can on top of the stove. Considering these cans are coated on
    > > the inside, cooking in the can, does not sound like a good idea.
    > >
    > > Becca
    >
    > I've read about that method for carmelizing sweetened condensed
    > milk. Isn't that for some kind of Mexican recipe?

    Yes and yes, however Eagle / Borden produces an already caramelized
    version of the SCM ready to use. I've seen this version in the
    Mexican section of my local Albertson's.

    Quoted message said:

    But, what is it used for?

    <http://en.wikipedia.org/wiki/Dulce_de_Leche>

    Brian

    Ok, since I try to live a low carb lifestyle for the most part, I guess
    I can give this a pass. ;-)

    I don't have much of a sweet tooth any more anyway...
    --
    Peace, Om

    Remove _ to validate e-mails.

    "My mother never saw the irony in calling me a Son of a [censored]" -- Jack Nicholson

  17. In article said:
    Omelet said:

    In article <[email hidden]>,
    "Pete C." <[email hidden]> wrote:


    And it seems someone no longer present said:
    Quoted message said:
    Quoted message said:

    > > One of my friends, cooks sweetened condensed milk, right in the
    > > can on top of the stove. Considering these cans are coated on
    > > the inside, cooking in the can, does not sound like a good idea.

    I've probably mentioned this here before... My mother used to make
    caramel for those luxurious caramel [censored] by throwing a can or two of
    condensed milk into the old copper boiler when doing the weekly wash.

    Of course, in those days, tin cans were tin cans.

    In more recent times (like about 12-18 months ago for the latest
    effort) I've made it by boiling a can in a saucepan on the stove top,
    and that worked perfectly well. However, I also have top say that
    there was no *obvious* lining in the can -- certainly nothing like
    that whitish "plastic" lining one sees in soup cans for example.

    Cheers, Phred.

    --
    [email hidden]

  18. MOMPEAGRAM said:


    "Pete C." <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:
    Becca said:


    Omelet wrote:
    > and why you should never cook in them.
    >
    > This is some really cool information.
    > Both articles explain why the insides of ALL food cans are coated,
    > both
    > Aluminum and Steel:
    >
    > http://www.nd.edu/~ndmag/can1su00.htm
    >
    > Money quote:
    >
    > "To keep powdered metal out of a can's contents, Schmid says,
    > manufacturers spray-coat the inside with a polymer dissolved in a
    > solvent. When the can is heated, the solvent boils away, leaving only
    > the protective polymer coating.
    >
    > The coating not only plasters any microscopic debris to the can wall
    > and
    > away from the food, it keeps the food from interacting with can
    > material, an especially important consideration with steel cans.
    >
    > "Say you've got tomato soup in this steel can. You don't want that
    > acidic soup corroding your can. It would kill your can, and the can
    > would adulterate your food," Schmid says. "It's also why you're
    > advised
    > that when you go camping and you have Spaghettios you don't cook them
    > in
    > the can, because the polymer will degrade and you're going to be
    > eating
    > polymer." (Industry sources tell Schmid that the typical consequences
    > of
    > such a culinary blunder are headaches and constipation.)"
    >
    >
    > http://www.aluminum.org/Template.cfm?Section=Can&NavMenuID=289

    One of my friends, cooks sweetened condensed milk, right in the can on
    top of the stove. Considering these cans are coated on the inside,
    cooking in the can, does not sound like a good idea.

    Becca

    Nor does the process to begin with, since they sell a version of the SCM
    already cooked like that and ready to go.

    I didn't know that!!!. Not available in Canada, at least not where I
    live. I'll have to check it out when we are down in Texas.

    MoM

    Sorry, I was slightly incorrect, the pre caramelized version of SCM is
    made by Nestle, not Bordon. "La Lechera" "Dulce de Leche", product of
    Chile. See pic posted on ABF.

    Pete C.

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