Origins of s33 and t33 acc. to a Dutch brewer

[DerBraumeister]

I was looking for a recipe for a Chimay blue with a good friend of mine, mr Babelfish, when I saw this:

T-58 is de Chouffe gist.
S-33 is de Chimay gist.

According to this, T-58 should be the De Chouffe yeast and S-33 the Chimay yeast. The guy has 8,600 posts so he must know something...

I have also seen people claiming T-58 to be the Chimay yeast and the S-33 to be an English yeast.

The plot thickens...

 

[mysterio]

S-33 is the old EDME strain (English Diastatic Malt Extract). It's an English cask ale type of yeast, not Belgian in the slightest i'm afraid.

T-58 La Chouffe? Possibly, not sure. It certainly has Belgian characteristics, it's quite spicy and peppery. Makes a nice Belgian Witbier.

 

[DerBraumeister]

S-33 is the old EDME strain (English Diastatic Malt Extract). It's an English cask ale type of yeast, not Belgian in the slightest i'm afraid.

Do we have any hard facts on that or just forum rumors?

 

[Revvy]

Do we have any hard facts on that or just forum rumors?

A simple google search of the words "Safale S-33" shows that just about every online homebrewshop lists the words (EDME Strain) in parentheses next to the words "Safale S-33" on their yeast strain ordering pages.

A followup google of "Safale S-33 Edme strain" nets 597 hits.

So I would say that it is more than just a "forum rumor."

 

[mysterio]

Yes it's pretty safe, just as S-04 is known as Whitbread, US-05 is the Chico strain, Saflager W 34/70 is.. well, Weihenstephan 34/70.

I'd be interested to know the provenance of T-58 too.

 

[david_42]

Most Fermentis yeasts were isolated in-house. If a yeast originated elsewhere, they state the source. Might as well ask Rogue where they got Pacman, you'll get the same answer.