How long before herbal tea sours if not refrigerated?

It's difficult to give a definitive answer on how long herbal tea can sit out without souring, as it depends on several factors:

* Type of herbs: Some herbs are naturally more prone to spoilage than others.

* Steeping method: If you use a tea bag, it will likely stay fresh longer than loose herbs.

* Storage conditions: Temperature and humidity play a big role. A hot, humid environment will speed up spoilage.

* Water quality: Using clean, filtered water can help prevent bacteria growth.

General Guidelines:

* Freshly brewed tea: This is best consumed immediately. It will start to lose flavor and aroma within a few hours.

* Herbal tea bags: Unopened tea bags can usually last several weeks to a few months at room temperature. Once opened, they're best stored in an airtight container and used within a few days.

* Loose herbal tea: This is best stored in an airtight container in a cool, dry place. Once brewed, it's best to refrigerate any leftover tea and consume it within 24 hours.

Signs of Spoilage:

* Unpleasant odor: If your tea smells sour or off, it's likely spoiled.

* Mold growth: If you see any mold on your tea, it's definitely spoiled.

* Change in texture: Spoiled tea may become slimy or have an unusual texture.

To err on the side of caution, it's generally best to refrigerate any brewed herbal tea and consume it within 24 hours.