I found this on FlavourArt's website. At the end there is a list of their flavorings that contain diacetyl and the percentage contained.
Diacetyl
We noticed an interest to use our flavours in electronic smoking or vaping and some customers rised question about the presence in some formulations of a compound known as Diacetyl.
First, we would like to clarify what diacetyl is. The following info are sourced from IFIC, International Food Information Council. ----------------------------------------------------------------------------------------------------------------------------------------------------- What is diacetyl and where is it found?
Diacetyl and related compounds produce the buttery odor and flavor of many foods. It occurs as a natural byproduct of fermentation and is found in several dairy products like butter, cheese and milk as well as in bread, coffee, brandy, and rum. It also is manufactured as a component of artificial butter flavoring that is used in butter-flavored microwave popcorn, candy, baked goods and cake mixes. Are there other flavors like diacetyl? Yes. The U.S. Food and Drug Administration (FDA) defines replacement flavors or flavoring agents as “substances added to impart or help impart a taste or aroma in food.”
There are also flavor enhancers, which are “substances added to supplement, enhance, or modify the original taste and/or aroma of a food, without imparting a characteristic taste or aroma of its own.” Flavors and flavor enhances are considered part of the larger group of food additives which the FDA regulates. This includes determining their safe use in food. Are there any significant health risks in consuming foods containing diacetyl? No. The FDA currently classifies diacetyl as “Generally Recognized as Safe” (GRAS) for consumption.
What about potential health effects of inhaling diacetyl vapors? Concerns about inhalation of diacetyl vapors stem from worker safety issues, not from the general public consuming or smelling foods flavored with diacetyl in the home. Interest in the possible inhalation effects of diacetyl first arose when workers in a microwave popcorn production facility developed breathing problems in the late 1990’s. Since that time, experience with people working in factories around diacetyl and research in animals has suggested that frequent and repeated breathing of high concentrations of diacetyl in the air may be associated with an extremely rare lung condition known as bronchiolitis obliterans.
This condition can cause scarring of the small airways in the lung, which can result in less air exchange in the airways and over time, airway blockage. As with most medical issues, an individual’s medical history and ongoing medical conditions may influence their response to diacetyl, so some individuals may be more sensitive than others to the inhalation effects of diacetyl. In April 2007, the Occupational and Safety Health Administration (OSHA) launched a program to address hazards and control measures associated with factories where butter-flavored microwave popcorn is produced.
The FDA continues to seek additional information to help further clarify any health effects from diacetyl. Is the industry doing anything about the potential health effects to workers? Yes. Because of the potential health risks from repeated exposure, the industry has implemented changes to reduce workplace exposure to diacetyl, including implementing engineering controls such as closed mixing tanks, separate mixing rooms for butter flavors, requiring respirators for mixing room operators, and improving air circulation in facilities. Putting the Risk in Perspective: Here’s What you Need to Know . . .
There is currently no evidence of health risks to the general public from preparing or consuming butter-flavored popcorn, or any other product containing diacetyl, in the home, as directed. These products can be enjoyed along with a healthful diet rich in nutrients. Current research indicates that there may be a potential health risk to individuals who are repeatedly exposed to high concentrations of diacetyl vapors for an extended period of time, such as individuals who work in facilities that manufacture or use certain flavorings containing diacetyl. However, these concerns do not apply to the average person consuming products containing diacetyl. ----------------------------------------------------------------------------------------------------------------------- So this should clear the fact that diacetyl is normally consumed when people eat butter, drink beer or wine, eat a fruit and its moderate consumption is harmless.
However we realize that for E smokers, our food flavors are used in a different way as they are not ingested but inhaled, and the presence of diacetyl can be a cause of concern.
So we are pleased to inform our customers, which flavours contain diacetyl and related amount in %. Just consider that the amount shown is related to 100% flavor, so when used in finished product its content is less. As example, butter flavor dosed at 0,3% in E juice.
The amount of diacetyl in 100 ml of E.juice is 0,0045 grams.
Assuming that a typical E cigarette contains an average of 0,2ml of E juice, the amount of diacetyl assumed in a smoking session is...... 0,000009 grams or 0,009 ppm (part per million).
Always consider the dosage in use !
LAST UPDATE OCTOBER 2010
Apple pie 0,4
Beer 0,001
Butter 1,5
Butterscotch 0,012
Beef boiled 0,00005
Bell pepper 0,01
Cappuccino 0,001
Chestnut 0,03
Champagne 0,0016
Coconut 0,5
Croissant 0,074
Cheese Erdammer 0,09
Cheese Emmenthal 0,018
Cheese Parmigiano 0,29
Caramel and butterscotch 0,07
Corn 0,2
Cream 0,078
Egg yolk 0,015
Fried 0,01
Golden syrup 0,09
Hazelnut 0,01
Maple 0,012
Milk condensed 0,5
Malt 0,01
Melon 0,01
Nut wild mix 0,9
Olive 0,01
Potato 0,00012
Pistacchio 0,0015
Rum 0,022
Soy sauce 0,35
Salmon 0,02
Truffle black 0,1
Tiramisu 0,05
Vanilla classic 0,07
Vanilla Madagascar 0,04
Vanilla Tahiti 0,08
Yogurt 1,6
Disclaimer: We produce and sell FOOD FLAVORS which comply with Italian and EU legislation and EFSA reccomendation. They are safe for FOOD use as they are intended to enter the body by the digestive system, not by lungs.
Digestion involves acid breakdown, enzyme attack, and kidney and liver processing. Vapor by the lungs goes directly in the blood stream. Even though due to absence of combustion, vaping can be compared to odor smelling in open air, consumption of food flavors by vaping has not been specifically tested for safety. Flavourart srl can not be held responsible for any claim or damage arising by the use of food flavor by the means of electronic devices as E-vapers, E cigarettes and similar.
