Does La Vencedora vanilla contain coumarin?
It does appear to be coumarin free although the quality of the vanilla, taste and smell, is not any better than imitation.
Which pure vanilla is best?
The top spot goes to Nielsen-Massey Madagascar Bourbon Vanilla Extract (view at Amazon) because of its rich, high-quality vanilla flavor. Want pure all-natural vanilla flavor that doesn’t break the bank? Try McCormick All Natural Pure Vanilla Extract (view at Amazon).
Why is Mexican vanilla so good?

Our Traditional Mexican vanilla is more typical of a really good vanilla that you buy when you visit Mexico. It has 10% alcohol and a small amount (less than 1%) of vanillin (which is a naturally occurring vanillin, not synthetic). The vanillin helps hold the flavor and gives the vanilla a very rich, smooth flavor.
What is different about Mexican vanilla?
The only significant difference is that in Mexico, the plant is pollinated by a bee and in Madagascar, humans need to pollinate the flower, leading to its higher price. (And despite the name, it is not actually made with bourbon whiskey; instead, “Bourbon” refers to a place where this vanilla was grown.)
How can you tell if Mexican vanilla is real?
Look for amber-colored vanilla. Real vanilla is not clear, so despite what the label might say, if it’s clear, it’s not real vanilla–it’s synthetic. True vanilla is amber colored. Synthetics tend to be very dark either from the coal tar from which they are produced or from caramel and red food colorings.

Is Tahitian or Madagascar vanilla better?
The Madagascar smelled of sweet, spicy vanilla. The Tahitian was a bit headier but just as sweets. The Mexican smelled like vanilla, only deeper–woody.
Why is coumarin banned in US?
The tonka bean’s distinct flavor is thanks to coumarin, a chemical compound that has been banned in the United States since 1954 because it can cause liver problems in high concentrations.
Why coumarin is not healthy?
Animal studies have shown that eating too much coumarin, which is abundant in Cassia cinnamon, may increase the risk of certain cancers ( 3 ). For example, studies in rodents have found that eating too much coumarin can cause cancerous tumors to develop in the lungs, liver, and kidneys (8, 9, 10 ).