This is just a way to sneak an MSG flavor (monosodium glutamate) into the bottle.
Yeast extract contains naturally occurring “glutamic acid” – roughly 5% – meaning it can be used in the same way as MSG.
Why Do Companies Use Yeast Extract Instead of MSG then?
There’s been stigma surrounding MSG for a long time.
To the point where people will completely avoid anything that says “MSG” on the label.
I won’t list every example but reasons include:
- xenophobia
- health movements that avoid processed foods
- allergies
Brands will then put “MSG Free” in bold in order to drive sales only to have Yeast Extract listed, which contain glutamates.
Comparing Yeast Extract to Pure MSG
MSG provides a pure “umami” boost because it’s an isolated substance and is a salt of glutamic acid.
Yeast Extract includes glutamates (noted above as ~5%) but also other compounds.
It has a more “layered” umami flavor – I’d say it’s less intense, savory, and adds depth of flavor.
To me, Yeast extract tastes “beefy.” You could almost equate it to like a beef bullion or beef ramen packet, only less salty.
In terms of price, MSG is far cheaper and more readily available via brands like “Accent.”
Yeast Extract is pretty hard to find too and the only place I’ve ever bought it from is Amazon.
How Much is Typically Used in a BBQ Rub?
Not much.
Typically for 1 cup of BBQ rub you’ll find people use:
- 1/8 – 1/4 tsp of MSG
- 1/2 tsp – 1 tsp of Yeast Extract
