Dunkin Lattes: Complete Caffeine Content Guide

A Dunkin iced latte (Medium, 414 ml) has 119 mg of caffeine.

• 119 mg — Dunkin Latte (Medium, 414 ml).
• 68 mg — Dunkin Latte (240 ml) (standard small latte in the dataset).
• 126 mg — Dunkin Latte large / 2 shots (350 ml).
• 50 mg — Chai latte (240 ml) at Dunkin (tea-based, much lower).
• FDA recommends ≤400 mg/day for healthy adults; pregnancy guidance ~200 mg/day; AAP discourages regular caffeine for adolescents.

Dunkin latte caffeine overview

The dataset lists Dunkin' Latte (Medium, 414 ml) at 119 mg and a 240 ml latte at 68 mg; a large latte (350 ml, 2 shots) is 126 mg. Dunkin lattes are espresso-based: caffeine comes from the espresso shots, not the milk. For most shops an iced latte of the same size uses the same shot count, so iced and hot lattes of identical size typically contain the same mg of caffeine.

Iced latte caffeine content by size

Exact numbers available in the dataset are the best guide to what you’ll get at the counter. Below are the common sizes with the dataset values and a quick comparison to single/double espresso for context.

Drink	Serving	Caffeine (mg)
Dunkin Latte (240 ml)	240 ml	68 mg
Dunkin Latte (Medium)	414 ml	119 mg
Dunkin Latte (Large, 2 shots)	350 ml	126 mg
Espresso (single)	30 ml	63 mg
Espresso (double)	60 ml	126 mg

Chai latte and other latte varieties

Chai lattes are tea-based, not espresso-based, so they contain markedly less caffeine. The dataset gives a 240 ml chai latte at 50 mg. Chocolate/ mocha lattes contain caffeine from both espresso and cocoa; the dataset lists a 240 ml mocha at 95 mg.

Signature and specialty latte numbers

Use these dataset values when comparing Dunkin lattes to other shops or specialty drinks:

• Flat white (160 ml): 130 mg.
• Mocha (240 ml): 95 mg.
• Affogato (90 ml): 63 mg (espresso contribution).

Cold brews and nitro cold brew in the dataset are much higher per 240 ml: cold brew 200 mg, nitro 215 mg; those are concentrated and not interchangeable with latte caffeine.

How much caffeine remains over time (decay math)

Caffeine in the body decays with a population-average half-life of about 5.7 hours. Practical approximations: after ~3 h ≈ 69% remains, after ~6 h ≈ 48%, after ~9 h ≈ 33%, after ~12 h ≈ 23%.

Time after drink	% remaining (approx)	From 119 mg (Medium)	From 68 mg (240 ml)	From 126 mg (Large, 2 shots)
3 hours	≈69%	≈82 mg	≈47 mg	≈87 mg
6 hours	≈48%	≈57 mg	≈33 mg	≈60 mg
9 hours	≈33%	≈39 mg	≈22 mg	≈42 mg
12 hours	≈23%	≈27 mg	≈16 mg	≈29 mg

Example: if you drink a Medium Dunkin iced latte (119 mg) at 8:00 AM, expect roughly 57 mg to still be active by 2:00 PM and ~27 mg by 8:00 PM on average. Individual metabolism varies with age, liver function, and medications.

What affects caffeine in a Dunkin latte?

Shots and extraction

Shot count is the primary driver: a double shot roughly doubles the mg compared to a single. The dataset shows single espresso ~63 mg and a double ~126 mg. Dunkin’s larger lattes often use two shots, which explains the 126 mg large entry.

Size, brew strength, and drink type

Milk volume dilutes concentration but not total mg. Cold brew and drip coffee vary by brew method—cold brew (240 ml, 200 mg) is far stronger than drip (240 ml, 96 mg) per the dataset. Chai and matcha are tea-based and have different profiles (matcha 70 mg per teaspoon in dataset).

Health, safety, and timing vs sleep

FDA guidance: healthy adults ≤400 mg/day. For pregnancy many authorities (including some European agencies and clinicians) recommend ~200 mg/day; the American Academy of Pediatrics discourages regular caffeine for adolescents. Excess caffeine can worsen anxiety, raise heart rate, and disrupt sleep. For sleep timing: aim to stop caffeine at least 6–8 hours before bedtime; the decay table shows substantial caffeine still present late in the day.

Practical tips and tracking

• If you want lower caffeine, order a single shot or a smaller size: a 240 ml latte in the dataset is 68 mg versus the 414 ml medium at 119 mg.
• Swap to chai (50 mg) or decaf (dataset decaf coffee 240 ml = 3 mg) to cut intake dramatically.
• Track your intake across beverages — CoffeeLog can automate logging and help you compare totals to the FDA 400 mg/day threshold.

Sources referenced in this guide include dataset values above, USDA FoodData Central-style comparisons in the dataset, FDA daily limits, Mayo Clinic notes on sleep and caffeine sensitivity, and American Academy of Pediatrics guidance on adolescents. This page is informational, not medical advice; consult a healthcare professional for personalized recommendations.