CellarScience BAJA Mexican Lager Yeast x 12g is a cold-fermenting dry lager yeast designed for brewers who want a clean, crisp, and neutral fermentation profile. Originally developed and popularised by the Modelo Group, this Mexican lager strain is an excellent choice for brewing refreshing light lagers, dark lagers, Mexican-style beers, and cold IPAs.

Clean Mexican Lager Fermentation

A good Mexican lager yeast should allow the malt and hops to shine without creating strong yeast-driven flavours. Therefore, CellarScience BAJA Mexican Lager Yeast x 12g is ideal when you want a balanced beer with a clean finish and dry character.

This yeast ferments best between 10–13°C, making it suitable for cold fermentation schedules. As a result, brewers can produce crisp, smooth, and easy-drinking lagers with excellent clarity and a refreshing finish.

Ideal for Light Lagers, Dark Lagers and Cold IPAs

CellarScience BAJA Mexican Lager Yeast x 12g is especially well suited to Mexican-style light lagers. However, it is also a great option for Mexican dark lagers and modern cold IPAs where a neutral yeast profile is desired.

Because BAJA finishes dry and allows balanced malt and hop expression, it can help create beers that are clean, bright, and highly drinkable.

High Quality Dry Yeast Performance

Every batch of CellarScience BAJA yeast is PCR tested to help ensure contamination-free yeast. In addition, CellarScience dry yeast is produced with high viability and strong sterol levels. This allows BAJA to be sprinkled directly onto wort with no initial oxygenation required.

Although direct pitching is simple and effective, some brewers may choose to rehydrate the yeast before use. Either method can support a successful and complete fermentation when correct temperatures and pitching rates are followed.

Easy Direct Pitch Convenience

For a single 19–23L batch, use two sachets of CellarScience BAJA Mexican Lager Yeast x 12g. For larger batches, dose at 0.66–1.06g per litre of wort, or 70–100g per 100L.

When scaling up, CellarScience recommends rounding up by one full sachet rather than measuring the yeast too precisely. This helps ensure an adequate pitch rate and supports strong fermentation performance.

Key Features

• Cold-fermenting Mexican lager yeast
• Clean and neutral fermentation profile
• Produces crisp lagers with a dry finish
• Ideal for Mexican-style light lagers
• Suitable for Mexican dark lagers and cold IPAs
• Allows balanced malt and hop expression
• Ferments best between 10–13°C
• Medium-high flocculation
• 75–85% attenuation
• 10–11% ABV alcohol tolerance
• Direct pitch dry yeast
• No initial oxygenation required
• PCR tested for contamination-free yeast
• Gluten-free
• International Code: DY108
• Similar strain: WLP940

Ideal Beer Styles

• Mexican Light Lager
• Mexican Dark Lager
• Cold IPA
• International Pale Lager
• American Lager
• Vienna-Style Lager
• Clean Amber Lager
• Light Crisp Lager
• Dry Refreshing Lager
• Neutral Fermentation Beer Styles

Direct Pitch Method

CellarScience BAJA Mexican Lager Yeast x 12g is designed to be sprinkled directly onto the surface of your wort.

1. Chill wort to the correct fermentation temperature.
2. Sprinkle yeast evenly over the wort surface.
3. Ferment between 10–13°C.
4. Follow your recipe and fermentation profile.

No initial oxygenation is required. This is possible because CellarScience uses an aerobic growth process that creates dry yeast with high viability and high sterol levels.

Rehydration Method

Rehydration is optional. However, some brewers prefer this method for larger batches or specific fermentation schedules.

1. Sanitise the yeast sachet and scissors before opening.
2. Use 10g of sterilised tap water between 29–35°C per gram of yeast.
3. Add 0.25g of FermStart Yeast Nutrient per gram of yeast.
4. Sprinkle yeast onto the water.
5. Allow the slurry to stand undisturbed for 20 minutes.
6. Swirl gently.
7. Add small amounts of wort to bring the slurry within 6°C of wort temperature.
8. Pitch into the wort.

Fermentation Performance

Optimum Fermentation Temperature:
10–13°C

Flocculation:
Medium-High

Alcohol Tolerance:
10–11% ABV

Attenuation:
75–85%

International Code:
DY108

Similar Strain:
WLP940

Gluten Status:
Gluten-Free

Dosage Information

19–23L Batch

Use 2 sachets for a single 19–23L batch.

Larger Batches

Use at a rate of:

• 0.66–1.06g per litre of wort
• 70–100g per 100L

When calculating larger batches, round up by one full sachet rather than measuring the yeast exactly.

Why Choose CellarScience Yeast?

CellarScience dry yeast offers high-quality fermentation performance with excellent convenience. While liquid yeast was once considered the premium option, modern dry yeast quality has improved significantly.

CellarScience yeast provides strong cell count, high viability, simple direct pitching, and reliable storage. As a result, brewers can save time while still producing clean, professional-quality beer.

CellarScience BAJA Mexican Lager Yeast x 12g is an excellent choice when you want a crisp, dry, and refreshing lager yeast without the handling challenges of liquid yeast.

What’s Included

• 1 x CellarScience BAJA Mexican Lager Yeast x 12g