Some interesting things we found for Does Ketchup Spoil
Some Interesting things we found for:

Does Ketchup Spoil

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Checking the web, many people state ketchup does not require refrigeration. Some state their ketchup bottle has no warning whatsoever. Here's what I can discern. Ketchup does not spoil quickly. Weeks, maybe months should be fine on a shelf.
whatneedsrefrigerating.blogspot.com/
Yes. Ketchup (aka catsup or catchup) can spoil. It can oxidize and undergo flavor and color changes that are not desirable.
http://wiki.answers.com/Q/Does_ketchup_spoil
Nutrition question: Does ketchup have to be refrigerated? No, however it will spoil quicker than if it is refrigerated. This is why restaurants can keep ketchup out on the table. At night the bottles ... No, however it will spoil quicker than if it is refrigerated. This is why restaurants can keep ketchup out on the table.
wiki.answers.com/Q/Does_ketchup_have_to_be_refrigerated wiki.answers.com/Q/Does_ketchup_have_to_be_refrigerated
I believe that we would all agree that a french-fry would simply be an obese potato chip and never know the notoriety it enjoys today without ketchup. Halloween props would be poorly stained with red Kool-Aid instead of sporting the trademark ketchup "blood" we come to expect and delight in.
www.peebucket.com/ketchup.html www.peebucket.com/ketchup.html
Once the seal has been broken/the cap removed, air enters the ketchup and decay starts. ALL food decays but we use various methods - refrigeration, freezing, airtight seals, canning, salting, immersion in vinegar- or sugar-based solutions, ...
http://answers.yahoo.com/question/index?qid=20080814123...
www.gomulinski.com/curt/log/archives/000021.php
It's advisable to refrigerate ketchup after opening the bottle unless you consume it pretty quick. Something will surely spoil in ketchup when left exposed to the air over time. It's just a question of time.
www.foodvenue.com/content/tips/T010001_Ketchup.asp www.foodvenue.com/content/tips/T010001_Ketchup.asp
My son came up with an interesting question a few months back.... "Why don't resturants have to refrigerate their ketchup?" ; I guess the real question is... why doesn't ketchup spoil at room temperatures? Any food scientists out there?
groups.google.ca/group/rec.food.cooking/browse_thread/t... groups.google.ca/group/rec.food.cooking/browse_thread/thread/488a2f47ff3c4ec0/24999b80a36fbcd3
OurFood: Information about General Bacteriology ... They are important in food and beverage production, as well as in the bioproduction of industrial chemicals, but they are also known to spoil food and beverages. The classification of acetic bacteria is being rearranged using 16S rRNA sequence analysis.
www.ourfood.com/General_bacteriology.html
Objectives: Students will be involved in making homemade ketchup. They will compare theirs to store-bought brands and learn some general ketchup facts. ... Science: bottling plant, how tomatoes grow, the tomato plant, can ketchup spoil?, scientific observations of tomato...
www.innovativeclassroom.com/Lesson_Plans/lessonplans.as... www.innovativeclassroom.com/Lesson_Plans/lessonplans.asp?id=16
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Definition of
Does
-v.t.
to perform (an act).
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Ketchup
-n.
type of thick tomato sauce with spices.
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Spoil
-v.t.
to damage.
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