1 teaspoon (medium) of Instant Coffee (Unsweetened) (2 g) has 0 calories. That works out to 2 calories per 100 g. It contains 0 g of carbs, 0 g of protein, 0 g of fat and 0 g of fiber. Its glycemic index is 0 (low), so it raises blood sugar slowly.

What is Instant Coffee (Unsweetened)?

Instant Coffee (Unsweetened) is made by brewing coffee and drying the concentrated brew into granules or powder that dissolves in water. It offers coffee flavour without the brewing equipment or wait, and contains no added sugar.

Around the world, people stir it into hot water for a quick cup, or mix it with hot or cold milk for a creamier drink. It is also handy at breakfast or during a work break; pair it with toast or a snack if you like. Served plain, it is a source of caffeine and has very few calories. Adjust the amount to suit your preferred strength, or add milk separately.

Instant Coffee (Unsweetened) Nutrition Facts

Selected: 100 g

KCAL / 100G

Carbs

0.1g

· 0% DV

Protein

0.3g

· 1% DV

Fat

· 0% DV

Fiber

· 0% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 25% · Protein 75% · Fat 0%

Instant Coffee (Unsweetened) Vitamins & Minerals

Vitamins

0.5mg · 3% DV

0.02mg · 2% DV

0.01mg · 1% DV

Minerals

Potassium ⭐

50mg · 1% DV

Magnesium

3mg · 1% DV

Phosphorus

7mg · 1% DV

Calcium

2mg · 0% DV

How Nutritious Is Instant Coffee (Unsweetened)?

Nutrient density

Low

10/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Medium

40/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Instant Coffee (Unsweetened) Glycemic Index

GLYCEMIC INDEX

Low

0 Low5570100

GLYCEMIC LOAD

Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Instant Coffee (Unsweetened)

To burn the 2 calories in 100 g:

🚶

1min

Walking (5 km/h)

🏃

1min

Running (8 km/h)

🚴

1min

Cycling

🏊

1min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

Is Instant Coffee (Unsweetened) Processed?

NOVA 3

Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Instant Coffee (Unsweetened) Contain Allergens?

No known major allergens

Gluten free

Dairy free

Eggs free

Peanuts free

Tree nuts free

Fish free

Soy free

Sesame free

Which Diets Is Instant Coffee (Unsweetened) Good For?

Vegan

✓ Suitable

Vegetarian

✓ Suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

✓ Suitable

Low FODMAP

— Not suitable

Instant Coffee (Unsweetened) Fat Profile

SATURATED

MONOUNSATURATED

POLYUNSATURATED

Compare Instant Coffee (Unsweetened)

☕️vs☕️

Instant Coffee (Unsweetened) vs Turkish coffee5 kcal fewer per 100 g

→☕️vs🥛

Instant Coffee (Unsweetened) vs Ayran35 kcal fewer per 100 g

→☕️vs🧊🍵

Instant Coffee (Unsweetened) vs Iced Tea18 kcal fewer per 100 g

→☕️vs🍵

Instant Coffee (Unsweetened) vs Tea1 kcal more per 100 g

→

Foods Similar to Instant Coffee (Unsweetened)

☕️

Turkish coffee

7 kcal

🥛

Ayran

37 kcal

🧊🍵

Iced Tea

20 kcal

🍵

Tea

1 kcal

🥤

Detox Water

2 kcal

🥤

Soda

42 kcal

☕️

Coffee

2 kcal

🥤

Cola

42 kcal

Frequently Asked Questions About Instant Coffee (Unsweetened)

How do you make instant coffee (unsweetened)?

To make instant coffee (unsweetened), stir the granules into hot water until they dissolve. Add more or less water to adjust the strength, and add milk separately if you want a creamier drink.

Is instant coffee (unsweetened) the same as ground coffee?

No. Instant coffee (unsweetened) is brewed coffee that has been dried into soluble granules, while ground coffee is roasted coffee beans that need brewing and filtering. You can drink instant coffee without leaving grounds or using brewing equipment.

Does instant coffee (unsweetened) contain caffeine?

Yes, instant coffee (unsweetened) contains caffeine. The amount varies with the brand and how much coffee you use, so a teaspoon in a large mug may differ from a stronger serving made with more granules.

How is instant coffee (unsweetened) freeze-dried?

Freeze-dried instant coffee (unsweetened) is made by freezing brewed coffee and removing the ice as vapor under low pressure. This process creates dry granules that dissolve in water; some instant coffee is instead dried using hot air.

Can instant coffee (unsweetened) dissolve in cold water?

Yes, instant coffee (unsweetened) can dissolve in cold water, but it usually takes more stirring than with hot water. For iced coffee, dissolve the granules in a small amount of warm water first, then add cold water or ice.

Does instant coffee (unsweetened) go bad after opening?

Instant coffee (unsweetened) can lose its aroma and flavor after opening, especially if exposed to moisture and air. Keep it tightly sealed in a cool, dry place, and discard it if it becomes damp or develops an unusual smell.

Is instant coffee (unsweetened) more acidic than brewed coffee?

Not necessarily; the acidity of instant coffee (unsweetened) varies by coffee bean and production method. It may still trigger heartburn or stomach discomfort in some people, so reducing the amount or having it with food can help.

Does instant coffee (unsweetened) dehydrate you?

No, moderate intake of instant coffee (unsweetened) does not usually cause dehydration. Caffeine can have a mild diuretic effect, but the water in the coffee still contributes to your fluid intake.

Is instant coffee (unsweetened) good before a workout?

Yes, instant coffee (unsweetened) can be a convenient source of caffeine before exercise, which may increase alertness. Its effects vary, and drinking it too close to a workout may cause jitters or stomach discomfort for some people.

Can you drink instant coffee (unsweetened) during pregnancy?

Yes, instant coffee (unsweetened) can be included during pregnancy if total caffeine stays within the limit recommended by your health professional. Caffeine is also found in tea, chocolate, and some soft drinks, so include those sources when estimating your intake.

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Nutrition data compiled from USDA FoodData Central and scientific sources.

· Last updated: September 24, 2026