• TR-313 is an intensively aromatic strain
  • Releases an exceptional amount of thiols and esters during fermentation
  • TR-313 has the ability to reveal pronounced aromas of Passion fruit, Guava, Grapefruit, Gooseberry, and Blackcurrant
  • TR-313 has the unique ability to reveal three volatile thiols: 4-mercapto-4-methylpentan-2-one (4MMP), 3-mercaptohexan-1-ol (3MH) and its acetate ester (3MHA)
  • It is a reliable fermenter that produces above average glycerol for a white strain and has low to moderate nitrogen requirements

Viability / Living cells: > 1.0 x 1010 cells/gram
Package Sizes:
500 g and 10 kg vacuum packed foil sachets.
Storage Conditions:
Store cool and dry, 4 – 15 ⁰C (39 – 59 ⁰F). Do not freeze!
Inoculation Rate:
200 – 350 g/1000 L (1.7 – 2.92 lbs /1000 gallons) Note: inoculation range is based on the juice sugar content and condition of grapes.

  1. In an inert and sterile container, prepare chlorine-free water at 38-42 ⁰C (100-108 ⁰F) that is 10 times the weight of the yeast to be rehydrated.
  2. Gently mix the yeast into the water and allow 20 minutes for rehydration.
  3. After rehydration, begin to slowly add full strength juice into the yeast mixture every 5 minutes to allow for acclimation. Do not decrease the temperature of the mixture by more that 5 ⁰C (9 ⁰F) with each juice addition.
  4. When the temperature of the yeast suspension is less than 10 ⁰C (18 ⁰F) warmer than the must to be inoculated , slowly add the yeast mixture into the fermentation vessel.

Note: Directly adding dry yeast to the must or juice tank is not advisable. The inoculation rate and the use of SO2, yeast hulls, rehydration nutrients, lysozyme should be decided according to the judgment of the winemaker.

This strain is specifically bred to enhance a wine’s aromatic potential and is ideal for aromatic expression of varietals such as Sauvignon Blanc, Riesling, Chenin Blanc, Semillon, Sylvaner, Pinot Blanc, Columbard, Grüner Veltliner, and Pinot Noir.

Recommended Varietals:

  • Sauvignon Blanc
  • Riesling
  • Chenin Blanc
  • Semillon
  • Pinot Noir


mod to fast

Optimal Temperature

14 – 25°C

Cold Tolerance


Alcohol Tolerance



0.2 - 0.35 g/L

Conversion Factor

16.3 g/L


7.0 - 8.5 g/L

Volatile Acidity


Nitrogen Requirements

low - med

Killer Factor




Foam Production


SO2 Production

low - med

H2S Production