Tea guides · Evidence-led guide
Starbucks tea caffeine: Youthberry, black, green and iced drinks
The short answer
Youthberry has a small nonzero value in the reviewed UK table. A fruit-sounding name does not establish caffeine-free ingredients, and a tea latte is not the same recipe as brewed tea.
Dated Starbucks UK reference: these records use the Spring 2026 guide. Newer seasonal guides are available; current recipes have not yet been reconciled with this snapshot.
Inspect the documented servings
These values come from the linked catalogue records. A source-backed record is not a measurement of your drink or a guarantee of a current recipe.
| Drink / market | Serving | Caffeine | Per 100 ml | Evidence / action |
|---|---|---|---|---|
| Starbucks UK Youthberry TeaUK | Short | 0.2 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Youthberry TeaUK | Tall | 0.2 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Youthberry TeaUK | Grande | 0.2 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Youthberry TeaUK | Venti | 0.4 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK English Breakfast TeaUK | Short | 41 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK English Breakfast TeaUK | Tall | 41 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK English Breakfast TeaUK | Grande | 41 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK English Breakfast TeaUK | Venti | 82 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Emperor's Clouds & Mist TeaUK | Short | 0.9 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Emperor's Clouds & Mist TeaUK | Tall | 0.9 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Emperor's Clouds & Mist TeaUK | Grande | 0.9 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Emperor's Clouds & Mist TeaUK | Venti | 1.8 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Classic Shaken Iced Green TeaUK | Tall | 0.6 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Classic Shaken Iced Green TeaUK | Grande | 1 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Classic Shaken Iced Green TeaUK | Venti | 1.1 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Peach Iced TeaUK | Tall | 0.6 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Peach Iced TeaUK | Grande | 1 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Peach Iced TeaUK | Venti | 1.1 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
Bars use the selected measure; numbers remain visible in both units. No bar is drawn for an undocumented concentration. Per 100 ml = serving caffeine × 100 ÷ documented volume.
Why the very small figures need context
CaffCalc transcribes the manufacturer’s named recipe values, including small nonzero entries. They are not independent laboratory results and should not be rounded into a blanket caffeine-free claim. Tea preparation and the precise blend matter.
Iced tea and tea lattes are separate records
A concentrate, syrup, tea bag and finished latte can each describe a different preparation. Choose the full product name, including iced or latte, before matching a dose. The table does not treat all green tea drinks as a single product.
Check the current UK recipe
The linked Spring 2026 guide is the version behind these records. A newer seasonal menu may change availability or preparation. The September editorial date does not replace the source-review date shown below.
Sources and scope
- Starbucks UK Nutrition & Allergen GuideCore beverage guide version 16 April 2026; Iced Teas & Refreshers table. Milk substitutions and other customisations can change the finished drink. Source reviewed 2026-08-23.
Educational information, not medical advice. Published, calculated and approximate values have different limits. Check the current product label or recipe when an exact amount matters.