What Happens When You Pour Cold Milk Into Hot Coffee?

Your love for coffee drives you to try different brewing techniques. But did you know that the milk temperature you use affects the drink’s texture, taste, and stability? Now, it’s high time you find out if you do it right by pouring cold milk into hot coffee.

When you pour cold milk into hot coffee, you alter the taste of your coffee by killing the subtle flavors of the brew. As a result, you ruin the warm, soaring aroma of your freshly brewed coffee. If the plan is to make iced coffee, you need to chill the hot coffee first before adding cold milk.

What Is The Correct Milk Temperature For Hot Coffee?

 Aim for a temperature between 60-65 degrees when steaming your milk. With that, you bring out the natural sweetness of the milk. However, if you need your coffee to be extra hot, allow your milk to steam up to 70 degrees.

It is vital to note that over-heating your milk breaks down or denatures the proteins in the milk. Moreover, milk fats change their chemical composition as well. As a result, they alter the taste of your coffee and its nutrient value.

Again, always use fresh milk. Re-steaming your milk is like re-cooking it, which makes it burn. Therefore, it gives your coffee a bitter, strange, or burnt flavor.

If the milk temperature is up to standard, you will achieve the best results when frothing. That’s because the milk creates a sweet and smooth microfoam.

You might be wondering how to know if you have reached the correct temperature? Look! The best way to determine your milk temperature is to measure using a thermometer. With time, you will train your heat perception. Thus, you can work without the thermometer.

What Happens When You Pour Cold Milk Into Hot Coffee?

You kill coffee flavors when you add cold milk to it. Cold milk smothers those delicate flavors making your cup of joe cold, tasteless, and lacking the sweet aromas. You don’t deserve to take such kind of a drink. So, never pour cold milk into hot coffee.

Instead, opt for milk at room temperature. However, it would be better to heat it to match your coffee. Even so, the ideal milk temperature for your hot coffee is between 60-70 degrees (140-160oF)

Let’s assume you are trying to make iced coffee with milk. Still, you cannot pour cold milk into hot coffee when preparing it. The best way to do it would be to use the coffee at room temperature or chilled.

How Do You Steam Milk For Coffee Like A Pro?

When steaming your milk, you are inducing air bubbles to it while it is heating. The goal is to create a creamy texture (microfoam).

Follow these steps when you want to steam your milk:

  1. Pour cold milk into a metallic steaming jug. Ensure that the milk level is at the bottom of the spout to avoid spilling when it increases in volume. Yet still, underfilling your milk jar can make your milk widely spin uncontrollably, thus, becoming super bubbly.
  2. Purge the steam wand before steaming your milk.
  3. Hold your jar with the dormant hand and submerge the steam wand tip below the milk surface, but not so deep. Begin to pull air into your milk. If you hear a hissing sound, you are on the right track.
  4. It will take about 5 seconds while holding the steam wand in the same spot. During the time, the milk fat expands to make foam.
  5. Spin the milk. Submerge your steam wand more below the milk surface. Slightly tilt the jug to discover the sweet spot, and induce the bubbles to the rest of the milk.
  6. Finish the steaming process. And there, you have your creamy and foamy milk texture.

How Do You Prepare a Perfect Cup of hot Coffee?

I advise you follow these steps when making a simple but rather tasty cup of hot coffee.


  • Single or double espresso/ freshly brewed coffee
  • Steamed milk
  • Foamed milk


  • Coffee machine
  • Thermometer
  • Milk jug
  • Saucepan


  1. Brew your coffee into a glass.
  2. As it continues to brew, pour your milk on a saucepan and warm it under medium heat. If you have a coffee machine with a steam wand, put your milk in a milk jug, purge the steam arm, and steam your milk.
  3. Foam the steamed milk to create a smooth microfoam. There are many ways to froth your milk at home. They include:
  4. Pouring the steamed milk into a jar and vigorously shaking until it froths.
  5. Use a Whisker to whisk the milk thoroughly to create foam.
  6. Use of the steam wand or milk frother.
  7. After frothing the milk, bump the jug on the table gently to remove the unwanted air bubbles.
  8. Start to pour your frothed milk into the brewed coffee slowly until you fill the cup.
  9. Add the remaining milk foam on top.

Which Is The Best Way To Make An Iced Coffee From Hot Coffee?

Are you a fan of iced coffee and would love to know how to make it yourself? Relax.  I got your back. You won’t spend more than 5 minutes while preparing your drink.

Here is how to go about it the best way:

  • Brew your extra-strong hot coffee. Add extra coffee grounds and less water when brewing to bring out the extra strong coffee.
  • Scoop the ice cubes and place them into two thick, heat-resistant glasses.
  • Pour the hot coffee in one glass with ice. You will notice some of the ice cubes melting. Don’t panic! That’s why you prepared an extra-strong coffee.
  • Immediately stir until your coffee cools.
  • Transfer the cooled coffee to the drinking glass with ice cubes in it.
  • Add your chilled milk and sugar or syrup. However, the two are optional. You can decide to adjust the ratios to suit your taste.
  • Stir well, fix your straw, and enjoy.

Final Thoughts

At this point, I do not expect you to make your coffee by adding cold milk to hot coffee. No! that’s not the way to go. Instead, use the information above to make your hot coffee or iced coffee the best way ever. I will be glad to hear you managed to make a tasty cup.