What is Ethyl Maltol E637 in food? Uses, Safe, Side Effects

What is Ethyl Maltol E637 in food? Uses, Safe, Side Effects


Table of Contents

Ethyl maltol is added to food and beverages as an additive and flavoring agent since it has a sweet taste. It may be made from cocoa beans, vanilla, or other plants. This chemical compound is often used in the production of candy, drinks, ice cream, and baked goods like cakes and cookies. Some beverages that use ethyl maltol include chocolates, sodas and non-alcoholic cocktails such as mojitos.

Ethyl maltol e637 is a synthetic non-flavor compound that is almost odorless. It has a caramel type of odor when it is strongly concentrated but it is difficult to detect the odor in low concentrations.

What is ethyl maltol?


Ethyl maltol is a chemical compound with the formula C9H13O2. It is an aromatic heterocyclic ether and a derivative of 1,3-dihydroxyacetone. Ethyl maltol has been identified as having properties that are similar to vanillin, which is the main component of vanilla flavor. The flavor and aroma of ethyl maltol are described as sweet, smooth, and creamy with hints of caramel.

Ethyl maltol can be used as a flavor ingredient in food products such as chocolate and confectionery as well as in some alcoholic beverages like beer and wine.

Ethyl maltol is an aroma compound that has been used for centuries in the food industry. It is a common ingredient in confectionery and tobacco products, as well as perfumes. Ethyl maltol can also be used to sweeten food and drinks and to enhance the flavor of other compounds.

Ethyl maltol was first isolated from rice wine by Japanese scientists in 1929. It was first described by the Japanese scientist, Fujikawa, in 1931. Ethyl maltol is one of the three main compounds found in caramel flavorings and it is produced naturally by some plants, such as barley grasses.

What is ethyl maltol used for?



Ethyl maltol is a flavor compound that is used in food and beverages such as candy, chocolate, baked goods, and beverages. It has a sweet, creamy taste that is often compared to butterscotch, toffee, cotton candy, or honey.

Ethyl maltol is an effective sweetener for low-calorie foods because it does not raise blood glucose or insulin levels. It can also be used to mask the bitter taste of certain foods and beverages.

In food production, ethyl maltol is added to products such as chocolate bars, ice cream, baked goods, and chewing gum. It can also be added to beverages such as carbonated drinks and juices to impart a fruity or floral note.

Ethyl maltol is also used in the cosmetics industry as a fragrance ingredient in perfumes and aftershave lotions. The U.S. Food and Drug Administration (FDA) has approved ethyl maltol for use in food products at levels up to 10 parts per million (ppm).

What is ethyl maltol in food?


Ethyl maltol is a flavoring used in food and beverages. It is often described as having a sweet, vanilla-like aroma, although it is also found in some flowers and vegetables. Ethyl maltol has been used in the food and beverage industry since the 1960s to provide a vanilla flavor without using real vanilla extract.

Ethyl maltol is produced by reacting ethylene glycol with formaldehyde. The product is then purified and crystallized.

In food and beverage applications, ethyl maltol can be added directly to products such as candy, soft drinks, baked goods, ice cream, gelatin desserts, jams and jellies, chewing gum, baked goods, and alcoholic beverages for its sweet aroma. It is also used as an ingredient in artificial flavoring compounds for use in other foods such as yogurt and confections.


Ethyl maltol is an organic compound that is produced by certain plants as a defense mechanism against insects. It has a sweet taste and can be found in many fruits and vegetables, such as apples and carrots. The compound has been used by humans for hundreds of years as a flavoring agent in many foods and beverages.

The Food and Drug Administration (FDA) currently allows ethyl maltol to be used in foods, beverages, and chewing gum with no limitations on concentration levels or use.

How is Ethyl Maltol Made?


By chemical synthesis, ethyl maltol can be manufactured commercially through the preparation of Grignard reagents, the Grignard reaction, hydrolysis, chlorination, and rearrangement processes.

As a first step, magnesium will be reacted with CH3CH2Br in the presence of anhydrous ether or tetrahydrofuran solvent to obtain the Grignard reagent (CH3CH2MgBr).

After reacting the Grignard reagent with furfural, a furfuryl alcohol intermediate is obtained by hydrolyzing it. The furfuryl alcohol intermediate is chlorinated at low temperature, then hydrolyzed and rearranged in an acidic medium to obtain crude maltol, It is then recrystallized in ethanol after sublimation and purification.

The general flow chart is as follows:



Other names2-ethyl-3-hydroxy-4-pyrone
CAS number4940-11-8
Chemical formulaC7H8O3
Molecular weight140.14
Melting point89-93 ℃
FEMA number3487



The substance is sparingly soluble in water; is soluble in ethanol and in propylene glycol (can be diluted to 10%).





What’s the application of ethyl maltol?


Food can be improved by adding ethyl maltol, a broad-spectrum synthetic flavoring agent. It is commonly added to beverages, juices, dairy products, ice creams, fruit wine, sauces, and pickled vegetables to enhance their sweetness.

It can also be used as an ingredient in candies, biscuits, cakes, chocolate, and meat products (ham and sausage) to impart a caramel-like taste.

In order to achieve intensive and long-lasting flavor, only a small amount (0.01%-0.1%) is required. To make ethyl maltol more flavorful or purer, some manufacturers add other flavors or fragrances. It is not permitted in some countries to be added to edible vegetable oils, such as sesame oil, soybean oil, peanut oil, rapeseed oil, and blended oils.



It improves yogurt’s flavor, reduces sourness, increases sweetness, and adds a fruity aroma.

Ice cream


Ice creams with low fats and calories are more creamy because of this ingredient.



The fruity sweetness is enhanced, acidity is reduced, and the drink has a pleasant aroma.



Due to its sweetness and caramel aroma, it is ideal for flavoring baked goods. It can be used in fruit fillings, milk cake fillings, pudding fillings, or cream fillings in baked goods.



Besides improving the color of cured meat and delaying fat oxidation, ethyl maltol also enhances the flavor of the meat.

In addition to enhancing the color of poultry meat, it prevents the degrading of myoglobin into iron-free porphyrin-globulin complexes, which deteriorate the quality and flavor of poultry meat products.

Pork’s color is mainly determined by pigments in the meat, such as myoglobin (by far the most important), hemoglobin, and cytochrome C.

By using this method, canned meat can be made pink without the use of nitrite. The ingredient can also be combined with ferric citrate and zinc gluconate to develop poultry products’ colors.

Cosmetics industry


It can be used as an ingredient to increase the sweetness of flavorings used in toothpaste or mouthwash; as a fragrance enhancer in perfumes and cosmetics; or as an essential oil component in fragrances.

Pharmaceutical industry


It can be used as an excipient of antibiotics (such as ampicillin).

Is ethyl maltol safe to eat?


Ethyl maltol is not toxic, but it is not edible either. Ethyl maltol is a compound that can be used as a flavoring agent in food and beverages. The compound has a sweet taste and is used to give food such as candy and chocolate its distinct flavor.

Ethyl maltol is FDA approved as a food additive, but it can also be used for medical purposes as well. It has been used in some pharmaceuticals to treat diabetes and other disorders related to sugar metabolism. It also has been used in toothpaste and mouthwashes to help prevent tooth decay.

The European Food Safety Authority (EFSA) has reviewed the safety of ethyl maltol in food products and determined that it does not cause cancer or reproductive harm when consumed at levels up to 1g per day during pregnancy or breastfeeding. Although there are no known side effects associated with eating ethyl maltol directly, it can cause stomach upset if you ingest too much at once.

In 1974, the JECFA set an acceptable daily intake (ADI) of “0-2 mg/kg body weight”.

What is the difference between ethyl maltol and maltol?


Ethyl maltol (1-methyoxy-2-ethylbutan-3-one) is a flavoring compound that is used in the food and beverage industry as a sweetener. It has also been found to have antioxidant properties and can be used in natural cosmetics.

Maltol (2-hydroxy-4(2H)-isopropylidenediurea) is a natural organic compound that is used primarily as a flavoring in foods and beverages. It is produced by the reaction of diacetyl with formaldehyde. Maltol has two chiral centers and therefore exists as two stereoisomers, namely R-(+)-maltol or S-(-)maltol, which are mirror images of each other.

Ethyl maltol is a synthetic version of maltol, which is found naturally in strawberries, coffee, and chocolate. It has a sweet, creamy taste, but with a hint of cherry or almond.

Maltol is an organic compound that’s used as a flavoring agent in food products such as chewing gum, candies, and chocolates. It’s also found in plants like strawberries and almonds.

Ethyl maltol and maltol are often confused with each other because they both have similar chemical structures and tastes. They’re both added to foods to give them more flavor.

What is the possible side effects of ethyl maltol?


There are no known side effects of ethyl maltol. This is because it is an artificial compound that is used as a flavor enhancer in food products. However, some people may develop allergic reactions to it.

Allergic reactions to ethyl maltol can be mild or severe. They include skin rashes and acne. It may also cause headaches, nausea, diarrhea, and other gastrointestinal problems.

There are no known harmful effects of ethyl maltol. However, if you are allergic to it then you may develop some minor side effects such as irritation of the skin or throat.

In addition to this, ethyl maltol can cause allergic reactions in people who are sensitive to it. These allergic reactions include rashes, itching, and swelling of the face and other parts of the body.

Where to buy ethyl maltol?


Ethyl maltol is a sweetener that can be used in the food and beverage industry. It is often used to enhance the flavor of foods, especially desserts and candies.

Ethyl maltol can be purchased in most health food stores  or online at Amazon.com, eBay

If you purchase a large quantity for your company, you also can consider purchasing from Alibaba.com at very reasonable prices. for Alibaba have many ethyl maltol manufacturers in China.

Frequently Asked Question


Ethyl maltol is a synthetic flavoring agent that is used to impart a sweet flavor to foods and beverages. It is produced by the reaction of ethyl acetate with alpha-methyl styrene, which produces ethyl maltol as a byproduct.


Ethyl maltol is not toxic. It is a common flavoring agent that is also used in some cosmetics, such as lip balm, deodorants, and perfumes. In Europe, ethyl maltol is approved by the European Food Safety Authority (EFSA) for use as a flavoring substance in foods at levels of up to 10 ppm (parts per million).


It is alcohol, but not the same kind of alcohol that you drink in your beer or wine. Ethyl maltol contains an ethoxy group (-OCH3) attached to an aldehyde group (-CHO), which makes it primary alcohol.


Ethyl Maltol is not vegan. Ethyl Maltol is an organic compound that is used as a flavoring in food and beverages. It is produced by the reaction of ethyl alcohol with glucose.

Ethyl Maltol is not gluten-free. Ethyl Maltol is a byproduct of the fermentation process, and as such, it contains gluten, which is a protein found in wheat, rye, and barley.



In that regard, Ethyl Maltol is perfectly safe for human consumption. It is used in food processing and is considered safe for human consumption. The concentration needed to register a toxic effect on the body can only be reached by heavy manufacturing it through industrial techniques. It would take an awful lot of sweets and chocolates to reach this amount.

It is essential, however, to keep in mind that any food additive needs to be used as per the standard stipulated. Any misjudgment can have unsafe or adverse effects on our health. If you are not a professional, stay away from using the product.

If you have any questions or feedback about ethyl maltol, please let us know in the comments.

Sophie Feng

Sophie Feng

Sophie Feng is the author of gradechemical.com, she is the co-founder of the grade chemical network. She has been in grade chemical company since 2017, with a working knowledge of food chemical .

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