How Much Caffeine Is in Coffee? A Practical Canadian Guide

The caffeine in coffee is not one fixed number. It changes with serving size, brew method, coffee dose, roast, grind, and the way a cafe defines small, medium, and large. That is why caffeine conversations should start with ranges, not absolutes.

Useful caffeine benchmarks

Drink	Serving	Typical caffeine
Brewed coffee	237 ml / 8 oz	80-135 mg
Large cafe coffee	473 ml / 16 oz	160-300 mg
Espresso	30 ml / 1 oz	45-80 mg
Instant coffee	237 ml / 8 oz	30-90 mg
Decaf coffee	237 ml / 8 oz	2-15 mg
SHYNE instant mushroom coffee	1 serving	65-75 mg
Black tea	237 ml / 8 oz	30-70 mg
Matcha	1 tsp powder	40-90 mg
Energy drink	473 ml / 16 oz	80-300 mg

Cup size is the hidden variable

Most people count cups by purchase, not by volume. A large takeout coffee can contain roughly twice the caffeine of a standard home mug. If your routine changed from home coffee to cafe coffee, your caffeine intake may have changed even if the number of cups did not.

Instant coffee is often lower, but not always

Instant coffee commonly lands below brewed coffee because the serving dose is smaller, but a heaping spoon can change that. SHYNE's current product copy lists 65-75 mg caffeine per serving, placing it below many large brewed coffees while still being real coffee.

Use the table as a habit tool

The point is not to make caffeine feel scary. The point is to make the routine visible. Once you know your rough total, you can adjust the easiest variable first: the largest cup, the latest cup, or the cup you drink on an empty stomach.

A practical next step

Use the calculator, then decide whether your best first change is smaller, earlier, lower-caffeine, or fewer cups.

Where SHYNE fits: SHYNE is a lower-caffeine instant mushroom coffee ritual for people who still want real coffee, but are rethinking their first cup. It should be positioned as a coffee choice, not as a treatment for symptoms.

Helpful next reads:

• Rethinking Coffee: A Smarter First-Cup Guide
• Coffee Habit Audit
• Caffeine Calculator
• Lower-Caffeine Coffee Options

A quick safety note: This article is for education only and is not medical advice. If caffeine is connected with chest pain, fainting, severe anxiety, persistent stomach pain, pregnancy concerns, medication interactions, or symptoms that worry you, speak with a qualified healthcare professional.