You found a box of tea bags at the back of the cupboard that expired two years ago. There is also a pitcher of iced tea you brewed three days ago sitting in the fridge, and you vaguely remember making a jar of sun tea last weekend that might still be on the counter. Which of these is still safe to drink?
Does tea go bad?
The short answer: It depends on the form. Dry tea bags and loose leaf tea do not go bad in a food safety sense unless they absorb moisture and develop mold. They simply lose flavor over time. Brewed tea is perishable. It should not sit at room temperature for more than 8 hours and lasts 3 to 5 days refrigerated. Sun tea brewed in sunlight at room temperature is a genuine food safety risk that the FDA and CDC both advise against.
For more on whether tea belongs in the refrigerator, see Does Tea Need to Be Refrigerated? For our cold-brewed peach mint iced tea recipe, cold brewing in the refrigerator is both the safer and more flavorful method.
For a complete reference on storing over 100 foods, see our Food Storage Guide
Key Takeaways
Dry tea bags sealed: 18 to 36 months per USDA
Dry tea bags after opening: 6 to 12 months best flavor
Loose leaf tea sealed: 1 to 2 years; 6 to 12 months after opening
Brewed tea at room temperature: 8 hours maximum
Brewed tea refrigerated: 3 to 5 days in a sealed container
Cold brew tea in the refrigerator: safe and recommended over sun tea
Sun tea at room temperature: food safety risk; FDA and CDC advise against it
Mold or off odor in dry tea: discard; flat or weak flavor alone is not a safety concern
Pu-erh and aged dark teas: exception: these improve with proper aging
Dry Tea vs. Brewed Tea: Two Completely Different Rules
Dry tea and brewed tea require completely different storage thinking. Understanding the distinction prevents both unnecessary waste and genuine food safety mistakes.
Dry tea, whether tea bags or loose leaf, is a shelf-stable product with very low moisture content. Without moisture, bacteria cannot grow. Dry tea does not expire in a food safety sense. The date on the package is a quality indicator, not a safety cutoff. Old dry tea tastes flat and weak, but it will not make you sick unless moisture has entered the package and caused mold.
Brewed tea is a different category entirely. Once you add water, tea becomes a perishable beverage that supports bacterial growth. Temperature, time, and container cleanliness all matter. Treating brewed tea like a shelf-stable product is where food safety problems begin.
How Long Does Tea Last?
Type
Sealed/Unopened
After Opening
Refrigerator
Tea bags
18 to 36 months
6 to 12 months best flavor
Not needed
Loose leaf tea
1 to 2 years
6 to 12 months best flavor
Not recommended
Brewed tea (hot method)
N/A
8 hours max at room temperature
3 to 5 days sealed
Cold brew tea
N/A
Brew in fridge only
3 to 5 days sealed
Sun tea
N/A
Not recommended by FDA or CDC
Refrigerate immediately; use same day
Dry tea figures per USDA. Brewed tea room t
