Lactobacillus brevis is a highly acid-tolerant strain that produces significant lactic acid, lending beers a pronounced sour character. It performs best in low-hop beers (<10 IBU) to avoid slowed fermentation, ensuring vitality and consistent acid development. YF-999 is perfect for producing traditional sour ales, Berliner Weisse, and other tart styles where clean, intense lactic character is desired. Its reliability and acidity profile make it a staple for sour-focused brewers.
Product information
| Weight | N/A |
|---|---|
| Producer | YeastFlow |
| Strain | Lactobacillus brevis |
| Temp.opt. (°C) | 15-37 |
| Fermentation | Wild |
| Types | Gose, Lambic, Sour |
| Size | 1 Liter, 2 Liters |
Shipping informations
At The Yeast Co., we take great care to ensure that your yeast arrives in perfect condition and as quickly as possible.
We offer two delivery options depending on the type of products in your order — Standard and Priority shipping.
Terms:
- Orders containing only dry yeast or dry products can be shipped via Standard or Priority delivery.
- Standard shipping is free for orders over 10 kg (based on the net product weight).
- If your order includes any liquid yeast, shipping is available only via Priority, ensuring temperature-safe and fast delivery — but at a reduced rate.
- Priority shipping is free for orders containing liquid products over 10 kg (net weight).
Estimated Delivery Times:
- Standard: 2–5 business days
- Priority: 1–2 business days
We always aim to dispatch your order as quickly as possible. Once shipped, you’ll receive tracking details to follow your delivery in real time.
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