Why can't you cut lettuce with a metal knife?

The enemy of lettuce is time plus oxygen, not metal. Exposing the inside of a head of lettuce to oxygen is going to hasten its breakdown, whether you cut it with plastic, metal or a laser beam. It's going to turn brown.
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Can I cut lettuce with a metal knife?

As you may have noticed when you cut lettuce with a metal knife, the metal reacts with the lettuce, creating unsightly brown, slightly wilted edges. Plastic does not stimulate a reaction, and the serrated edge of the knife cuts crisply through lettuce without tearing it.
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Why are you not supposed to cut lettuce with a knife?

Most salad lovers will tell you that a torn leaf lasts longer, while a cut lettuce leaf turns brown faster. The rationale behind this is that, when torn, the leaf breaks along the natural boundaries between cells, whereas a knife cuts right through cells causing more damage and quicker browning.
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Can you use a knife on lettuce?

There are some people who claim that cutting lettuce with a knife will cause the lettuce to brown. However, the act of simply exposing the vegetable to oxygen is what causes the discoloration. The browning would happen weather you cut the lettuce with a knife or rip it by hand.
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Why do chefs tear lettuce instead of cutting?

To prolong the life of lettuce by a day or two, stick to tearing by hand. Tearing allows leaves to break along their natural fault lines, rupturing fewer cells and reducing premature browning.
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Maximize Harvesting Lettuce With The Cut and Come Again Method



Do metal knives make lettuce Brown?

No Truth to the Rumor That Metal Knives Make Lettuce Turn Brown.
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Does rust on lettuce hurt you?

There's no harm in actually eating lettuce that's oxidizing and turning pink. It just won't be the tastiest, or even the most nutritious. The enzymes breaking the lettuce down do not present any danger to your digestive system.
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Why do the French eat their salad last?

In Europe, however, the timing of salads are a little different. European-trained chef Karl Guggenmos explains that in France, diners believe that a green salad consumed after a main course can assist with digestion. “Since salads are rich in fiber, they will aid in the digestion of the food eaten before.
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What is the purpose of a lettuce knife?

A plastic serrated edge knife that is designed to slice lettuce without causing the edges of the lettuce to turn brown.
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Why does cut lettuce rust?

Normally, the polyphenols and enzymes don't come into contact with each other, but damage due to aging, handling and ethylene exposure allows the compounds to mix. The oxidizing effect allows polyphenols to link together and produce the red spots on Romaine lettuce and brown pigment we know as lettuce rust.
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Is it rude to cut your salad?

Never cut the lettuce in salad because it's considered rude. Salads in France (and many other European countries) are meant to be folded up and eaten with a fork, not cut.
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Do the French eat salad first or last?

When is the best moment of the meal to eat green salad? In France, there is no “best” time—there is only one time: after the main course and before the cheese. The reasons for this are varied, with some believing salad cleanses the palate, while others claim it aids digestion.
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What does pink on lettuce mean?

Pink lettuce is linked to pink rib — a stress response that causes the ribs of the lettuce to turn from white to pink. This occurs when lettuce is overmature and stored at high temperatures. Pink lettuce can also be the result of oxidation — a chemical process caused by exposure to oxygen (via Eat or Toss).
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Does lettuce water make you high?

Well, the short answer is yeah, it actually does. Lettuce contains a high level of lactucarium, which researchers have proven can make you feel relaxed and super sleepy. For a long time, lettuce water and lettuce seed oil has been used to promote sleepiness, and also a good nights sleep.
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Is it OK to eat lettuce that is a little red?

Thrive Cuisine confirms that reddened lettuce, however, is still safe to eat. The enzymes present during this stage present no harm whatsoever to your digestive system, but the lettuce will have lost a good amount of its flavor and nutritional value. Plus, it's not exactly visually appetizing.
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Is a ceramic knife good for cutting lettuce?

Ceramic knives are known for being chemically inert, which means they are perfect for cutting fruits and vegetables that are prone to browning. Plastic knives are non-reactive as well; currently, lettuce knives are marketed as preventing the browning process after cutting.
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Does stainless steel turn lettuce brown?

There is no truth to the rumor. If you believe your lettuce stays fresher longer when you cut it with a plastic knife, the truth is, it produces the same outcome as using a metal knife. The enemy of lettuce is time plus oxygen, not metal.
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What kind of knife prevents lettuce from turning brown?

This traditionally tedious task becomes a delight with Zyliss' lettuce knife. The lightweight knife features a long, angled blade with an evenly serrated cutting edge. Place your greens on a cutting board and cut. The clean cut allows the leaves to stay green longer rather than quick-browning like torn leaves.
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Why do they call hair lettuce?

Lettuce: a great head of hockey hair. See also: flow, salad.
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Can you eat unwashed lettuce?

If you eat contaminated leafy greens without cooking them first, such as in a salad or on a sandwich, you might get sick. CDC estimates that germs on produce eaten raw cause a large percentage of U.S. foodborne illnesses. Leafy greens and other vegetable row crops are a major source of E. coli O157 infections.
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Why is it called iceberg lettuce?

Introduced for commercial production in the late 1940s, Iceberg (or crisphead) lettuce was the only variety bred to survive cross-country travel (the name Iceberg comes from the piles of ice they would pack the light green lettuce heads in before the advent of the refrigerated train car).
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Is it safe to eat lettuce with brown edges?

A-The brown spots on lettuce may be cosmetically undesirable, but they do not make the lettuce unsafe to eat. The spots may be the result of a high storage temperature. Lettuce should be stored at a fairly low temperature in an airtight container. Stored this way, some lettuce can be kept for as long as three weeks.
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