Tea guides · Evidence-led guide
Starbucks matcha vs chai vs coffee: caffeine by UK serving
The short answer
There is no universal rule that a tea latte has less caffeine than a coffee. Use the named recipe and size; brewed chai and chai tea latte are different entries.
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 Matcha Green Tea LatteUK | Short | 27.9 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Matcha Green Tea LatteUK | Tall | 57.2 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Matcha Green Tea LatteUK | Grande | 83 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Matcha Green Tea LatteUK | Venti | 111.5 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Chai Tea LatteUK | Short | 26.2 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Chai Tea LatteUK | Tall | 39.3 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Chai Tea LatteUK | Grande | 52.4 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Chai Tea LatteUK | Venti | 65.5 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Caffè LatteUK | Short | 44.6 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Caffè LatteUK | Tall | 89.1 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Caffè LatteUK | Grande | 89.1 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Caffè LatteUK | Venti | 133.7 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Chai TeaUK | Short | 0.7 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Chai TeaUK | Tall | 0.7 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Chai TeaUK | Grande | 0.7 mg | Not documented | Manufacturer listedVerified source record · Reviewed 2026-08-23Use this dose · Compare |
| Starbucks UK Chai TeaUK | Venti | 1.3 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.
Make a like-for-like choice
Begin with the size and preparation you intend to order, then compare the caffeine amounts. The table intentionally keeps brewed chai separate from chai latte; using the wrong row could produce a misleading estimate even within the same brand.
Do not infer caffeine from taste or colour
Sweetness, milk volume and colour are not measurements of caffeine. A numeric comparison needs the actual recipe data. The same reasoning applies to iced variants, which should be looked up as their own documented preparation.
Version and customisation limits
These standard UK records use the linked Spring 2026 guide. They do not establish the current dose of a custom order, a newer seasonal recipe or a US drink with a similar name. Check the current guide if the precise amount affects your decision.
Sources and scope
- Starbucks UK Nutrition & Allergen GuideCore beverage guide version 16 April 2026; Hot Teas 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.