Yes, worm tea does go bad.
While worm tea (often referred to as worm wee tea) is a fantastic natural fertilizer for your garden, it is not indefinite. According to the provided reference, worm wee tea does have a shelf life of two to three months at most, especially over the warmer months.
Understanding that worm tea has a limited shelf life is crucial for maximizing its benefits. Using it within its optimal period ensures you are providing your plants with the most potent and beneficial microbial life and nutrients.
Factors Affecting Worm Tea Shelf Life
Several factors influence how long worm tea remains viable:
- Temperature: Warmer temperatures can significantly shorten the shelf life, accelerating the breakdown of beneficial components. This is why the reference specifically notes the impact of warmer months.
- Light: Exposure to UV light can degrade the components of the tea.
- Storage Conditions: Proper storage is key to extending its usability.
Proper Storage for Worm Tea
To help preserve your worm tea and get the most out of its shelf life, follow these storage tips:
- Location: Keep it in a dark, cool area. Basements, sheds (if not getting too hot), or even a cool pantry can work.
- Container: Store it in an airtight container to prevent contaminants and maintain anaerobic (oxygen-deprived) conditions if you are aiming for that type of brew, although the reference doesn't specify the brew type. However, dark containers can help block light.
- Away from UV: The reference explicitly states that storing in a dark area prevents UV from breaking down the components.
By following these simple storage guidelines, you can help ensure your worm tea stays potent for its typical two to three month lifespan. After this period, the microbial life may diminish, making it less effective.