{"product_id":"wlp690-acetobacter-aceti","title":"Acetobacter aceti | White Labs WLP690 | Vinegar \u0026 Kombucha Culture","description":"\u003ch2\u003eWhite Labs WLP690 Acetobacter aceti for vinegar and kombucha cultures\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhite Labs WLP690 Acetobacter aceti\u003c\/strong\u003e is a liquid bacterial culture used for vinegar production and kombucha culture work. \u003cem\u003eAcetobacter aceti\u003c\/em\u003e oxidizes ethanol into acetic acid, the sharp acid associated with vinegar and acetic fermentations.\u003c\/p\u003e\n\u003cp\u003eThis is not a normal beer yeast strain and should not be evaluated by attenuation or flocculation like an ale or lager yeast. Use WLP690 when the goal is controlled acetic-acid production from an alcoholic base, or when building a kombucha culture where \u003cem\u003eAcetobacter\u003c\/em\u003e activity is desired.\u003c\/p\u003e\n\u003ch3\u003eBest uses\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCulture:\u003c\/strong\u003e \u003cem\u003eAcetobacter aceti\u003c\/em\u003e, a gram-negative rod bacterium.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary role:\u003c\/strong\u003e oxidizes ethanol into acetic acid.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuggested uses:\u003c\/strong\u003e vinegar production and kombucha culture work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhite Labs part number:\u003c\/strong\u003e WLP690.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e White Labs Vault culture.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTemperature guidance\u003c\/h3\u003e\n\u003cp\u003eThe ideal growth temperature for WLP690 at \u003cstrong\u003e77-85°F \/ 25-30°C\u003c\/strong\u003e. The culture can oxidize ethanol more slowly around 68°F \/ 20°C, but warmer controlled conditions are better when active acetic fermentation is the goal.\u003c\/p\u003e\n\u003ch3\u003eHow to think about WLP690\u003c\/h3\u003e\n\u003cp\u003eMost brewing yeast listings focus on sugar fermentation, attenuation, flocculation, and beer style profile. WLP690 is different. It works after ethanol is present and requires oxygen exposure to oxidize ethanol into acetic acid. That makes process control, sanitation, oxygen management, and the base liquid more important than beer-style fermentation specs.\u003c\/p\u003e\n\u003ch3\u003eHandling and storage\u003c\/h3\u003e\n\u003cp\u003eKeep White Labs liquid cultures refrigerated until use. For shipped orders during warm weather, add an \u003ca href=\"\/products\/ice-pack-8oz\"\u003eice pack and insulated envelope\u003c\/a\u003e to help reduce heat exposure in transit. For related cultures and fermentation options, browse our \u003ca href=\"\/collections\/white-labs-yeast\"\u003eWhite Labs yeast\u003c\/a\u003e collection.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs WLP690 a beer yeast?\u003c\/strong\u003e\u003cbr\u003eNo. WLP690 is an \u003cem\u003eAcetobacter aceti\u003c\/em\u003e bacterial culture, not an ale or lager yeast. It is used for acetic-acid production rather than normal wort fermentation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does WLP690 do?\u003c\/strong\u003e\u003cbr\u003eIt oxidizes ethanol into acetic acid. That is the core process behind vinegar production and part of the microbial activity found in kombucha cultures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat temperature should I use?\u003c\/strong\u003e\u003cbr\u003eWhite Labs lists 77-85°F \/ 25-30°C as the ideal growth range. Activity can continue more slowly around 68°F \/ 20°C.\u003c\/p\u003e","brand":"White Labs","offers":[{"title":"Default Title","offer_id":51655194247446,"sku":"yeast-white-liquid-wlp690","price":0.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0814\/4807\/5542\/files\/white-labs-wlp690-acetobacter-aceti.png?v=1786058651","url":"https:\/\/socalbrewingsupply.com\/products\/wlp690-acetobacter-aceti","provider":"SoCal Brewing Supply","version":"1.0","type":"link"}