Quick Answer
Yogurt can last for 6 to 12 months in vacuum-sealed jars when stored at room temperature, provided it is made with the right bacteria strains and has been properly sealed and handled.
Storage Conditions
Proper storage is key to extending the shelf life of yogurt in vacuum-sealed jars. When storing yogurt at room temperature, keep it away from direct sunlight, moisture, and heat sources. Maintain a consistent temperature between 40°F and 70°F (4°C and 21°C) to slow down bacterial growth.
Factors Affecting Shelf Life
Several factors affect the shelf life of yogurt in vacuum-sealed jars, including the type of bacteria used, the storage conditions, and the packaging quality. Yogurt made with mesophilic bacteria (e.g., Lactobacillus bulgaricus and Streptococcus thermophilus) generally has a longer shelf life than yogurt made with thermophilic bacteria (e.g., Lactobacillus acidophilus and Bifidobacterium bifidum). Properly sealed jars with no visible signs of leakage or damage can help prevent contamination and spoilage.
Sealing and Handling Techniques
When sealing yogurt in vacuum jars, use a vacuum sealer or a food saver to remove air from the jar. This helps prevent spoilage and extends the shelf life. Make sure to remove any excess air from the jar before sealing, and store the jars in a single layer to prevent them from getting crushed or damaged. Handle the jars carefully to avoid contamination and damage.
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