A grande Starbucks London Fog tea latte has about 29 g of sugar; size, milk, and syrup pumps move that number up or down.
If you’re craving that cozy Earl Grey latte and wondering, “how much sugar in a London Fog,” here’s the short version: the default grande at Starbucks lands near 29 grams of sugar from milk and vanilla syrup. The rest of this guide shows the exact numbers by size, how different milks change the count, and easy ways to lower it without losing the drink’s mellow bergamot-vanilla vibe.
How Much Sugar In A London Fog? At A Glance
London Fog = Earl Grey tea + steamed milk + vanilla syrup. Sugar comes from two places: the milk’s natural lactose and the added syrup. A grande at Starbucks lists 29 g sugar on the nutrition panel (default 2% milk, four pumps vanilla).
| Drink & Size | Sugar (g) | Notes |
|---|---|---|
| Starbucks Short (8 fl oz) | 15 g | Default 2% milk, standard vanilla syrup. |
| Starbucks Tall (12 fl oz) | 22 g | Default build with two tea bags and syrup. |
| Starbucks Grande (16 fl oz) | 29 g | Default build most folks order. |
| Starbucks Venti (20 fl oz) | 37 g | Largest hot size on the menu. |
| Tim Hortons Small | 19 g | Standard recipe with vanilla. |
| Tim Hortons Medium | 28 g | Scaled milk + syrup. |
| Tim Hortons Large | 38 g | Largest hot size. |
Sugar In A London Fog By Size And Milk
Two levers drive the number on the label: natural milk sugar and pumps of vanilla syrup. An 8-ounce cup of cow’s milk has roughly 12 g of natural sugar (lactose). That sugar shows up even with no syrup.
Vanilla syrup adds the rest. Starbucks’ default grande build uses four pumps; many baristas estimate ~5 g of sugar per pump, which explains why the number jumps as sizes increase. If you trim one or two pumps, you’ll see a quick drop.
Where The Sugar Comes From
Milk choice: dairy carries natural lactose; unsweetened almond or soy tend to contribute less sugar, while oat varieties can add starch-derived sugar unless labeled unsweetened. The chain’s nutrition pages show totals after the milk swap.
Syrup pumps: every pump raises total sugar. If you love the vanilla note, try “half sweet” or ask for sugar-free vanilla where available to shave the count fast.
Hot vs. iced: the iced London Fog lists similar totals for the same size, but ice changes volume rather than sugar grams. Check the chain’s nutrition page for the iced version when you customize.
Label Check: A Quick Way To Verify
For Starbucks, the menu’s nutrition panel shows sugar for each size and lets you preview swaps. Here’s the official page for the hot London Fog with the default build. Link opens in a new tab: London Fog latte nutrition.
How To Order Less Sugar (Without Losing The Flavor)
Want the taste with fewer grams? Use one or two of these small tweaks. Stack a couple for bigger drops.
Drop Pumps First
Cut from four pumps to two on a grande. That trims roughly 10 g of added sugar while keeping the vanilla note. You can also ask for “one pump + one pump sugar-free vanilla” when the store stocks it.
Right-Size Your Cup
Downshift from venti to tall and you cut both milk sugar and syrup. Tall to grande changes are noticeable on the label: 22 g → 29 g → 37 g as sizes scale.
Pick A Lower-Sugar Milk
Unsweetened almond or soy usually post lower totals than dairy because they carry less natural sugar per cup. If you prefer dairy, nonfat vs. 2% won’t change lactose, but it can change calories and texture.
Ask For “Tea Misto” Style
A Tea Misto is half tea, half steamed milk with no syrup by default. Add one light pump of vanilla and you’ll get the aroma with fewer grams than the standard London Fog.
Ingredient Breakdown: Why The Number Looks The Way It Does
Here’s the anatomy of that 29 g figure on a grande at Starbucks. The milk base (about 12–14 g of natural sugar depending on volume poured) pairs with the vanilla syrup’s added sugar; four pumps bring the total near the posted value. The official panel lists 29 g sugar for the default build.
If you go iced, you’ll see a similar range per size because ice doesn’t add sugar; it only changes how full the cup looks. The iced nutrition pages confirm totals by size.
Chain-Specific Notes
Starbucks: Grande posts ~29 g sugar on the hot menu; venti ~37 g. The page also shows default syrup pumps, so you can dial it back in the app.
Tim Hortons: Medium sits near 28 g sugar; large near 38 g. Stores vary a bit, so the brand’s calculator is a handy check before you order.
How Much Sugar In A London Fog At Home?
Making it at home gives you full control. Use strong Earl Grey, warm your milk of choice, and add vanilla in measured steps. Many folks find one teaspoon of vanilla syrup plenty for a mug.
| Build | Estimated Sugar (g) | What To Change |
|---|---|---|
| 8 oz dairy milk + no syrup | ~12 g (natural) | Switch to unsweetened almond/soy to drop milk sugar. |
| 8 oz dairy milk + 1 tsp vanilla syrup | ~12 g + ~4–5 g | Use half-teaspoon or sugar-free vanilla. |
| 6 oz dairy milk + 1 pump vanilla | ~9 g + ~5 g ≈ 14 g | Go “half pump” for lighter sweetness. |
| 6 oz unsweetened almond milk + 1 pump vanilla | ~1–2 g + ~5 g ≈ 6–7 g | Increase tea strength to keep body. |
| Oat milk base + 1 pump vanilla | Varies by brand | Choose unsweetened versions; check carton label. |
| Dairy milk + sugar-free vanilla (1–2 pumps) | ~12–14 g | All sweetness from flavors, not added sugar. |
| “Tea Misto” style + 1 pump vanilla | Lower than standard | Half milk means less lactose + less syrup. |
Smart Ordering Tips You Can Use Right Now
Use The App To Pre-Set “Half Sweet”
Customizing pumps in the app ensures the barista sees the request clearly. Save a “half sweet grande London Fog” and reorder with one tap next time.
Swap Milks Based On Your Goal
Chasing fewer sugar grams? Unsweetened plant milks usually help. Chasing creamier texture? Stay with dairy but trim pumps.
Mind The Size Jump
Going from tall to venti raises sugar from ~22 g to ~37 g on the hot menu. If you always finish the cup, consider the smaller size and enjoy it while it’s hot.
Reader-Level Takeaway
If you only remember one line, make it this: the answer to “how much sugar in a London Fog” depends on cup size and pumps. A default grande at Starbucks lists 29 g, and every pump you drop cuts about five grams. Use milk swaps and size control to land on the sweetness that fits your day. For official numbers, check the Starbucks nutrition page and, for the milk piece, the dairy sugar overview from the industry’s information arm: London Fog nutrition and how much sugar is in milk.