Unofficial fan guide - not affiliated with Tim Hortons
Official ingredients, calories (110–240 cal), Canadian prices, oat milk customization, caffeine comparisons, and a 5-minute copycat recipe.
The Tim Hortons London Fog is a handcrafted hot specialty tea latte made by steeping Earl Grey black tea infused with bergamot citrus, blended with steamed milk, and sweetened with vanilla syrup. Available in Small, Medium, and Large sizes, it delivers between 110 and 240 calories across Canadian restaurants.
The London Fog ranks among the most enduring hot beverage innovations on the Canadian specialty tea menu. While traditional tea orders simply combine steeped leaves with splash dairy, a London Fog elevates the experience by pairing concentrated black tea with velvety, barista-steamed milk and aromatic vanilla flavouring.
The flavor foundation of every Tim Hortons London Fog rests entirely on its Earl Grey tea bag. The blend uses high-grown black tea leaves infused with cold-pressed natural oil of bergamot, a fragrant Mediterranean citrus fruit known for its floral, lavender-like aroma.
When hot filtered water is poured over the tea bag in your paper cup, the bergamot oils release rapidly, creating a citrusy perfume that cuts effortlessly through rich dairy. Interestingly, the London Fog originated in Vancouver, British Columbia in the late 1990s at a local coffeehouse before becoming a nationwide Canadian cafe staple.
The second essential component is hot frothed milk. Tim Hortons team members froth milk using espresso machine steam wands, generating microfoam that produces a creamy, luxurious mouthfeel without requiring heavy cream.
To balance the brisk astringency of steeped black tea, two to four pumps of sweet vanilla syrup are stirred into the beverage. The resulting flavour profile delivers comforting floral aromatics, warming Madagascar vanilla notes, and a silky texture reminiscent of a cafe latte.
Because the London Fog contains both steamed milk and concentrated vanilla syrup, its nutritional density is substantially higher than standard black coffee or plain steeped tea. Official figures from the Canadian Nutrition Guide establish exact values per serving.
Caloric content scales predictably with beverage volume:
Nearly all carbohydrates in a standard Tim Hortons London Fog originate from simple sugars. In a Medium cup, approximately 12 grams of sugar stem from the natural lactose in 2% cow's milk, while the remaining 16 grams are contributed by the added cane sugar in the commercial vanilla syrup.
If you are monitoring glycemic response or managing dietary sugar intake, requesting "half sweet" reduces the syrup dosage by 50%, cutting approximately 8 to 12 grams of added sugar without sacrificing the delicate vanilla aroma.
A Tim Hortons London Fog represents exceptional value when compared to specialty coffeehouse chains where similar tea lattes retail for $5.50 to $6.50 CAD. Pricing across standard Canadian corporate and franchise locations averages:
Prices are subject to provincial sales taxes (such as 13% HST in Ontario or 5% GST in Alberta). Ordering through third-party delivery apps like Uber Eats or DoorDash typically incurs a $0.50 to $0.80 premium per item in addition to service fees.
The following reference table outlines the complete specifications for standard builds prepared with default 2% dairy and standard vanilla syrup pumps across Canada.
| Drink Size | Volume (oz / ml) | Retail Price (CAD) | Calories | Total Fat (g) | Sugar (g) | Protein (g) | Caffeine (mg) |
|---|---|---|---|---|---|---|---|
| Small | 10 oz / 284 ml | $3.29 | 110 | 2.0 | 19.0 | 4.0 | ~60 mg |
| Medium | 16 oz / 454 ml | $3.79 | 160 | 3.0 | 28.0 | 6.0 | ~80 mg |
| Large | 20 oz / 568 ml | $4.29 | 240 | 4.5 | 38.0 | 8.0 | ~90 mg |
A Tim Hortons London Fog delivers a moderate, balanced caffeine kick, containing roughly 60 mg to 90 mg of caffeine depending on cup size and steeping duration.
By comparison, a Medium cup of Original Blend brewed coffee packs 205 mg of caffeine, while a Medium Steeped Tea contains approximately 125 mg. Because black tea contains the natural amino acid L-theanine, the caffeine in a London Fog is absorbed more gradually into the bloodstream, promoting calm, sustained mental focus without the jittery spike often associated with espresso drinks.
One of the greatest virtues of ordering at Tim Hortons is the ease with which the beverage can be adapted to dietary restrictions and personal flavour preferences.
All Canadian Tim Hortons restaurants now stock non-dairy plant-based milks alongside standard dairy. You can substitute 2% milk for creamy Chobani oat beverage or Silk almond milk for a modest surcharge of $0.50 to $0.70 CAD.
Opting for oat milk enhances the velvety body of the beverage while adding a subtle roasted grain sweetness that complements bergamot citrus. Almond milk yields a lighter, nutty profile with roughly 40 fewer calories than whole dairy.
Standard builds can taste overly sweet for patrons who prefer assertive tea flavour. When ordering at the counter or drive-thru speaker, you can customize your syrup pumps:
Because the drink is half hot water and half steamed milk, the tea can taste somewhat diluted if consumed immediately before the leaves fully infuse. To achieve a more robust, tannic cup, ask for a "Double-Bagged London Fog" (an extra tea bag typically costs $0.30 CAD). Remember to discard the bags after 4 to 5 minutes to prevent bitter over-extraction.
Recreating the authentic taste with an at-home copycat recipe requires minimal equipment and takes under five minutes.
Ingredients Needed:
Step-by-Step Preparation:
A Tim Hortons London Fog contains steeped Earl Grey black tea infused with natural oil of bergamot, steamed 2% cow's milk, and sweet vanilla flavour syrup. Customers can substitute plant-based milks or adjust syrup pumps upon request.
Yes, a Tim Hortons London Fog contains caffeine sourced naturally from black tea leaves, ranging from approximately 60 mg in a Small cup to 90 mg in a Large cup. This provides roughly one-third of the caffeine found in a standard cup of brewed coffee.
A Medium (16 oz) Tim Hortons London Fog contains 160 calories, 3.0 grams of fat, 28 grams of sugar, and 6.0 grams of protein according to the official Canadian Nutrition Guide.
Yes, Canadian Tim Hortons locations offer creamy oat beverage as a dairy alternative for an additional surcharge of approximately $0.60 CAD. Almond milk is also available for dairy-free and vegan orders.
A Small London Fog costs approximately $3.29 CAD, a Medium costs $3.79 CAD, and a Large costs $4.29 CAD before applicable provincial sales taxes. Surcharges apply for plant-based milk substitutions or delivery orders.
To reduce the sugar content, simply order your London Fog "half sweet," which instructs the team member to add half the standard dosage of vanilla syrup. You can also request it unsweetened and add low-calorie sweetener packets.
Yes, Tim Hortons serves the London Fog with the Earl Grey tea bag floating inside the hot beverage. It is recommended to remove the tea bag after 3 to 5 minutes to prevent the beverage from becoming overly bitter.
A London Fog is a specific variety of tea latte made exclusively with Earl Grey tea, vanilla syrup, and steamed milk. A generic tea latte can be prepared using any tea base, such as chai, English breakfast, or matcha.
Yes, you can redeem 800 Tims Rewards points for any size of London Fog across Canadian locations. This tier also unlocks handcrafted lattes, cappuccinos, and classic Iced Capps.
While not listed as a standard button on digital menu boards, you can order an Iced London Fog by requesting steeped Earl Grey tea served over ice with cold milk and vanilla syrup.
This is an independent guide not affiliated with Tim Hortons or Restaurant Brands International. Nutritional information is sourced from the official Canadian Nutrition Guide. See Sources.