Making Cold Brew With Instant Coffee: A Guide

Quick answer

• Yes, you can absolutely make cold brew with instant coffee.
• It’s a super fast and easy way to get your cold brew fix.
• The flavor will be different from traditional cold brew, often less nuanced.
• You’ll need instant coffee, cold water, and a way to mix and chill.
• It’s perfect for when you’re short on time or don’t have fresh beans.
• Expect a bolder, more direct coffee flavor.

Who this is for

• The busy bee who needs coffee now.
• Anyone curious about cold brew but intimidated by the process.
• Campers or travelers looking for a simple coffee solution on the go.

What to check first

Brewer type and filter type

For instant coffee cold brew, you don’t really need a fancy brewer. A simple jar or pitcher works fine. You’re not filtering grounds here, just dissolving. So, no need to overthink the filter part.

Water quality and temperature

Use cold, filtered water if you can. It makes a difference, even with instant. Tap water can sometimes add off-flavors. Cold water is key to the “cold brew” part, even if it’s just dissolving.

Grind size and coffee freshness

This doesn’t apply here. Instant coffee is already processed. Freshness matters for whole beans, but for instant, just make sure the jar is sealed well.

Coffee-to-water ratio

This is where you’ll play around. A good starting point is usually 1-2 tablespoons of instant coffee per 8 oz of water. You can always add more coffee or water later to get it just right.

Cleanliness/descale status

Make sure your jar or pitcher is clean. No one wants funky flavors from yesterday’s leftovers. Since there are no grounds, descaling isn’t a concern for the “brewer” itself.

Step-by-step (brew workflow)

1. Gather your gear. Grab a clean jar or pitcher, your instant coffee, and cold water.

• Good looks like: Everything is clean and ready to go. No stray grounds or old coffee smells.
• Common mistake: Using a dirty container. This will make your cold brew taste bad. Always rinse or wash your brewing vessel.

2. Measure your water. Pour your desired amount of cold, filtered water into the jar. Let’s say 16 oz for a couple of servings.

• Good looks like: The water is cold and clear.
• Common mistake: Using warm or hot water. This defeats the purpose of cold brew and can make instant coffee bitter. Stick to cold.

3. Add the instant coffee. Start with about 2 tablespoons per 8 oz of water. So, for 16 oz, try 4 tablespoons.

• Good looks like: The coffee crystals are dry and ready to dissolve.
• Common mistake: Using too little coffee. You’ll end up with weak, watery results. It’s better to start a bit stronger and dilute later.

4. Stir it up. Stir the water and instant coffee until the crystals are fully dissolved.

• Good looks like: No visible coffee powder or clumps. The liquid is uniform.
• Common mistake: Not stirring enough. You’ll have undissolved coffee at the bottom, leading to uneven flavor. Keep stirring until it’s all blended.

5. Chill it down. Put a lid on your jar or cover your pitcher and place it in the refrigerator.

• Good looks like: The container is sealed and chilling.
• Common mistake: Leaving it out on the counter. This is not cold brew and can lead to bacterial growth. Always refrigerate.

6. Let it steep (briefly). For instant coffee, you don’t need the long steep time of traditional cold brew. About 15-30 minutes in the fridge is usually enough to let the flavors meld.

• Good looks like: The coffee has had a little time to chill and the flavors have integrated.
• Common mistake: Steeping for hours. Instant coffee dissolves quickly. Over-steeping can sometimes bring out a slightly metallic taste.

7. Taste and adjust. Pour a little into a glass. Is it too strong? Too weak?

• Good looks like: You’re tasting and deciding if it’s to your liking.
• Common mistake: Not tasting. You might end up with a brew that’s not quite right for your palate. Tasting is crucial for personalization.

8. Dilute or strengthen. If it’s too strong, add a splash more cold water or a bit of ice. If it’s too weak, stir in another teaspoon of instant coffee and let it dissolve for a few more minutes.

• Good looks like: You’ve achieved your desired coffee strength and flavor.
• Common mistake: Giving up if the first try isn’t perfect. Adjusting is part of the process.

9. Serve it up. Pour over ice. Add milk, cream, or sweetener if you like.

• Good looks like: A refreshing glass of cold brew.
• Common mistake: Not serving over ice. Cold brew is meant to be cold, and ice helps keep it that way without watering it down too much.

Common mistakes (and what happens if you ignore them)

Mistake	What it causes	Fix
Using hot or warm water	Bitter taste, loss of “cold brew” character	Always use cold water. It’s the foundation of cold brewing.
Not stirring enough	Undissolved coffee, weak spots, uneven flavor	Stir until all crystals are gone. A whisk or frother can help ensure full dissolution.
Using a dirty container	Off-flavors, funky smells, potential spoilage	Wash or rinse your brewing vessel thoroughly before use.
Over-steeping (for instant)	Can sometimes develop a slightly metallic or harsh taste	Instant coffee dissolves fast. 15-30 minutes in the fridge is usually plenty.
Using too little coffee	Weak, watery, unsatisfying brew	Start with the recommended ratio (1-2 tbsp per 8 oz) and adjust up if needed.
Not tasting and adjusting	A brew that’s not to your personal preference	Always taste before serving and add more water, coffee, or ice as needed.
Skipping the refrigeration step	Not true cold brew, potential bacterial growth	Always refrigerate your instant coffee mixture.
Using poor quality water	Subtle off-flavors that detract from the coffee	Filtered water generally yields a cleaner taste.
Using stale or old instant coffee	Less potent flavor, potentially stale notes	While less critical than with beans, fresh instant coffee will always give better results.
Adding ingredients before chilling	Can affect dissolution or flavor integration	Dissolve coffee in water first, then chill. Add milk/sweeteners after it’s ready to serve.

Decision rules (simple if/then)

• If your instant coffee cold brew tastes bitter, then add a little more cold water or a pinch of sugar because bitterness often indicates a too-concentrated solution or slight over-extraction.
• If your brew tastes weak, then add another teaspoon of instant coffee and stir well because you simply didn’t use enough coffee to begin with.
• If you’re in a serious rush, then skip the steeping time and just stir well and serve immediately because instant coffee dissolves instantly.
• If you prefer a less intense coffee flavor, then use less instant coffee or dilute your final brew with more water because instant coffee can be quite potent.
• If you want to add milk or creamer, then do so after chilling and tasting because this allows you to accurately judge the coffee’s strength first.
• If you notice clumps of undissolved coffee, then stir more vigorously or use a small whisk because this ensures even flavor distribution.
• If you’re making this for a crowd, then scale up your water and coffee measurements proportionally because consistency is key.
• If you find the flavor a bit flat, then try a different brand of instant coffee because different brands have different flavor profiles.
• If you want to make it a “fancy” cold brew, then add a splash of vanilla extract or a dash of cinnamon during the stirring phase because these can complement the coffee flavor.
• If you’re concerned about the “cold brew” aspect, remember that while instant coffee bypasses the traditional grind and steep, using cold water and chilling still gives you a smoother, less acidic profile than hot-brewed instant coffee.

FAQ

Can I use decaf instant coffee for cold brew?

Yes, absolutely. If you’re looking to cut back on caffeine, decaf instant coffee works just as well for this method. The process remains the same.

How long can I store instant coffee cold brew?

It’s best to consume it within 2-3 days. Keep it covered and refrigerated. After that, the flavor might start to degrade.

Will this taste exactly like regular cold brew?

No, it won’t. Traditional cold brew made from ground beans has a more complex, nuanced flavor profile. Instant coffee cold brew will be bolder and more direct.

Can I use flavored instant coffee?

You sure can. If you like flavored coffee, using a flavored instant coffee will add that flavor to your cold brew. Just be mindful that some flavors can be more intense than others.

What’s the best ratio of instant coffee to water?

A good starting point is 1 to 2 tablespoons of instant coffee per 8 ounces of cold water. You can adjust this based on your personal preference for strength.

Do I need a special coffee maker for this?

Nope. A simple jar, pitcher, or even a large mug will do the trick. You just need something to mix and chill your coffee in.

Is there any benefit to using instant coffee for cold brew besides speed?

Besides speed, it’s incredibly convenient and requires minimal equipment. It’s also a great way to use up that jar of instant coffee that’s been sitting in your pantry.

Can I make a big batch of this?

Definitely. Just multiply your water and instant coffee measurements. Store it in a larger container in the fridge.

What this page does NOT cover (and where to go next)

• Detailed comparisons of different instant coffee brands.
• Advanced techniques for traditional cold brew.
• The science behind coffee bean extraction.
• Specific recipes for cold brew cocktails or elaborate coffee drinks.
• The history of coffee or cold brewing.