Last week I tasted my 2009 yeast trail here. All wine was fermented on 100% Rondo. This is not a scientific article, just grape harvested & fermented in the same room with different yeast. Points are given up to 10, and is ONLY an overall impression. All batches are checked specifically for herbal taste and is marked as (Rondo) The trail is NOT made for selecting a perfect yeast, but just for observing the differences in an ongoing flow with the same grapes and equipment.
15 different bottles of the 2009 harvest.
Final results of the 2009.
Tasting notes mid August 2010
SYMPHONY:
|
a blend of 2 yeasts, Kluyveromyces thermotolerans -giving the wild berries and spicy flavors- and Saccharomyces cerevisiae doing the alcoholic fermentation until the consumption of sugars is done. |
|
NOTE: |
Great nose, harmonic & mild – |
8 (out of 10) |
RYTHM:
|
RYTHM has a stronger effect than SYMPHONY and the two blends are mainly used in red and rosé wines and base white wines for sparkling wines. |
|
NOTE: |
Ahh – the right nose, and the taste is perfect ! |
9 (out of 10) |
MELODY |
a blend of 3 yeasts, Kluyveromyces thermotolerans, Torulaspora delbrueckii for the wild touch and a Saccharomyces cerevisiae to take the lead during the alcoholic fermentation and finish the consumption of sugars. |
|
NOTE: |
Weak nose- but the right nose, very pleasant. |
8 (out of 10) |
RUBY: |
One of the earliest Chr. Hansen strains, given up cause a high SO2 production. Could trouble the malo |
|
NOTE: |
Sweet ? – good taste. !!! Fermentation stuck ? |
x (out of 10) |
EC-1118
:
|
yeast
has been isolated in Champagne. (Not for red grapes) |
|
NOTE: |
Rondo nose, Rondo taste ! |
7 (out of 10) |
71B
:
|
was
isolated by the INRA (National Agricultural Research Institute)
in Narbonne, France. |
|
NOTE: |
Fresh nose, interesting … sweet ? |
7,5 (out of 10) |
BM-45
:
|
was
isolated in the early 1990s in collaboration with the Consorzio
del Vino Brunello de Montalcino and the University of Siena |
|
NOTE: |
Medium, but nice nose, good taste |
8 (out of 10) |
GRE
:
|
In
1992 the Lalvin ICV-GRE was selected from the Cornas area
of the Rhône Valley. In reds, it contributes up front
fruit to easy-to-drink Rhône style wines. |
|
NOTE: |
Clean fruity nose (Rondo) good taste & good body |
8 (out of 10) |
BRL-97
:
|
was
selected as a result of a four-year study by the University
of Torino from over 600 isolates taken from 31 wineries
in the Barolo region. The goal of the selection was to find
natural yeast from Nebbiolo that is able to retain both
the color and the varietal character of the grape. |
|
NOTE: |
Medium, but nice nose, very nice & good taste |
8,5 (out of 10) |
BRL-97
:
|
Ferment #2 |
|
NOTE: |
ALSO, medium, but nice nose, super, very nice & good taste |
9 (out of 10) |
S6U:
|
The S6U strain was isolated and studied by Dr. Ciolfi of the Instituto Sperimentale per l'Enologia near Velletri. S6U was selected for its unique enological characteristics such as the ability to ferment at very low temperatures in musts with low levels of suspended solids. Used style: for low temperature, low SS musts |
|
NOTE: |
Medium, but nice nose, very nice & good taste |
8 (out of 10) |
DSM + BRL97 |
Blend of DMS & BRL97 |
|
NOTE: |
Super !! |
9 (out of 10) |
Strain n° UC331 |
Collection Cépage® Cabernet, Strain n° UC331 selected by the University of Chile - has been specifically selected for producing red wine from Cabernet Franc as well as Cabernet Sauvignon. |
|
NOTE: |
Dark close nose, good taste. Surely not like others |
9 (out of 10) |
SIHA A10 |
A10 SIHA – Red Roman yeast – best for Cabernet Sauvignon, Lemberger, Syrah, Zinfandel, Dornfelder and Saint Laurent. |
SIHA |
NOTE: |
Close nose, glycerin, strong taste but good ! |
8,5(out of 10) |
Link to Chr. Hansen yeast: