Leftover Coffee Ice Cubes

These leftover coffee ice cubes make excellent use of extra coffee that might otherwise have gone to waste. Here’s how to make them.

A mason jar filled with iced coffee, a straw, and a leftover coffee ice cube sticking out the top.

Have leftover coffee in that pot? Don’t toss it in the sink. Instead, pour it into ice cube trays and freeze it overnight. Adding it to your iced coffee cubes to your coffee will keep it cold without diluting it, which is especially nice in the summer months.–Georgia Pellegrini

Coffee Ice Cubes

  • Quick Glance
  • (2)
  • 1 M
  • 1 M
  • Serves 1
5/5 - 2 reviews
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Ingredients


Directions

Pour your leftover coffee in ice cube trays. Stash it in the freezer until frozen through or overnight.

Plunk some coffee cubes in your iced coffee. Turn any remaining coffee ice cubes in a resealable plastic bag, seal, and stash in the freezer. Originally published June 13, 2015.

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Recipe Testers' Reviews

This is too simple to even really call a recipe, but genius! I don't know why I never thought of this before. If you're like me, you usually have 1 to 2 cups coffee leftover in your pot by mid-morning (even after going back for a second cup). And if, like me, you also enjoy sipping your iced coffee slowly, you inevitably end up with a diluted beverage halfway through. This is a way to keep your iced coffee "perked" and also avoid wasting leftover coffee (the other great use I've found is for chocolate cake!).

I used room-temperature coffee and also did this over 3 days, as I just kept adding coffee to my still-empty ice cube trays. My only advice would be, depending on how many cubes you use (I used about 5 in a cup of iced coffee), add a bit more milk and sweetener if desired to make sure your iced coffee doesn't lose the original flavor you created as the additional coffee melts.

I love having something to do with leftover coffee! These coffee ice cubes are perfect for the afternoon iced coffee pick-me-up. Just make sure to freeze the coffee before it sits out for hours and the flavor starts to change. I used 1 1/4 cups coffee to fill my ice cube tray with 14 ice cubes.

Total time was 8 hours and 30 seconds because I let it freeze overnight, but I think it probably freezes solid after just a few hours.

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Comments

  1. I’ve been making coffee ice cubes for years. It’s not just for iced coffee. I like to pour cola over 1-2 cubes.Very tasty.

  2. My Mom always did this and we made jokes about her dirty ice cubes. I loved them to cool down hot coffee that can sometimes be just too hot to take in!
    Hydrangeas like a cool cup of joe if you have a lion’s share of dirty ice cubes. And if you want to maybe go retro, Mom’s ice cube trays were metal with no absorbed aromas. Thank you, as always, for the relatable post!

  3. Wouldn’t the smell of coffee permeate those ice cube trays? Do you want the ice in your lemonade or whatever to taste like coffee? I would suggest dedicating a tray just for the coffee ice cubes.

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