Is Stash green tea decaffeinated? The definitive answer for your brew

December 8, 2025 •

2 min read

According to Stash Tea, their decaffeinated products are processed using a chemical-free CO2 method, which is considered natural and preserves most of the flavor. So, is Stash green tea decaffeinated? The answer is not always, and it depends on which specific product you purchase.

Quick Summary

Stash offers both caffeinated and decaffeinated green teas. Decaf versions use a gentle CO2 process to remove most caffeine, leaving trace amounts. Always check the packaging to verify the tea's caffeine level.

Key Points

Check the Label: Stash green tea comes in both caffeinated and clearly labeled decaffeinated versions, so always read the box.
Decaf is Not Caffeine-Free: Stash's decaf green tea contains 4 mg or less of caffeine per cup, meaning it is not 100% caffeine-free.
CO2 Process: Stash uses a chemical-free CO2 method to gently remove caffeine, preserving the majority of the tea's natural flavor.
Flavor is Preserved: The gentle decaffeination process allows Stash's decaf version to taste very similar to its caffeinated counterpart.
Know the Difference: Standard green tea has moderate caffeine levels, while the decaf option is suitable for evening consumption or for those sensitive to caffeine.

Stash’s Caffeinated vs. Decaf Green Tea

Green tea originates from the Camellia sinensis plant, which naturally contains caffeine. Stash Tea offers both a standard caffeinated version and a decaffeinated version. Their standard Premium Green Tea contains caffeine, while the "Decaf Premium Green Tea" is specifically labeled for those limiting caffeine.

The Gentle CO2 Decaffeination Process

Stash uses a chemical-free Carbon Dioxide (CO2) process to decaffeinate their teas. This method gently removes caffeine while largely preserving the tea's flavor and aroma. The CO2 acts as a solvent under high pressure and temperature, extracting caffeine molecules and leaving larger flavor compounds. This environmentally friendly process results in decaf tea that tastes similar to its caffeinated counterpart.

Decaf Does Not Mean Caffeine-Free

Decaffeinated teas are not completely caffeine-free. The CO2 process, like other decaffeination methods, cannot remove 100% of the caffeine. Stash's decaf teas have 4 mg or less of caffeine per cup, much lower than regular green tea (20-45 mg) or coffee (80-100 mg). Naturally caffeine-free options, called herbal infusions, come from plants other than Camellia sinensis.

Comparison: Caffeinated vs. Decaf Stash Green Tea

Here's a comparison to help you choose:


Feature	Stash Caffeinated Premium Green Tea	Stash Decaf Premium Green Tea
Caffeine Level	20-45 mg per 8 oz cup (average for green tea)	4 mg or less per 8 oz cup
Labeling	Labeled as "Premium Green Tea" or mentions caffeine content	Clearly labeled as "Decaf Premium Green Tea"
Best For	Morning boost, sustained energy without coffee jitters	Evening consumption, caffeine sensitivity, relaxation
Process	Standard green tea processing	Gentle, chemical-free CO2 decaffeination

How to Identify Stash's Decaffeinated Green Tea

To identify Stash decaffeinated green tea, check the packaging:

Product name: Look for "Decaf," such as "Decaf Premium Green Tea". The standard version won't have "Decaf".
Packaging details: The box will explicitly state "Decaffeinated" or similar text. Caffeinated versions may mention caffeine or lack decaf labeling.
Ingredients: The ingredient list for the decaf version will indicate "Naturally decaffeinated green teas".

Conclusion

Stash Tea offers both caffeinated and decaffeinated green tea options, providing a clear choice for consumers. Their Decaf Premium Green Tea is processed using a gentle CO2 method, resulting in minimal caffeine and a preserved flavor. Always check the packaging for the "Decaf" label to ensure you're selecting the appropriate tea. For more details on Stash Tea's production, you can learn more about Stash Tea's production philosophy.

Frequently Asked Questions

No, Stash offers both standard, caffeinated green tea and a specifically labeled Decaf Premium Green Tea. You must check the packaging to confirm.

Stash's Decaf Premium Green Tea is processed to contain 4 mg or less of caffeine per cup, a very low amount suitable for those seeking minimal caffeine.

The CO2 process is a chemical-free method that uses pressurized carbon dioxide to extract caffeine molecules from the tea leaves while leaving most of the flavor components intact. Stash uses this gentle, natural method for its decaf teas.

The CO2 decaffeination process is designed to preserve the tea's flavor and aroma, so Stash's Decaf Premium Green Tea tastes very similar to its caffeinated version.

Stash offers a wide variety of herbal infusions, which are naturally caffeine-free. These are distinct from decaffeinated teas, which are made from green tea leaves and have undergone a decaf process.

The easiest way is to look for the word "Decaf" prominently printed on the product packaging, such as "Decaf Premium Green Tea".

For evening consumption, or if you are sensitive to caffeine, the Stash Decaf Premium Green Tea is the more suitable option, as it will not interfere with sleep.

Yes, even in caffeinated green tea, brewing time and water temperature can influence the final caffeine content. A longer steep time or hotter water will typically extract more caffeine.