The Easiest Trick to Save Your Leftover Smoothie

Whatever you do, don't pour it down the drain!

March 30, 2022
Photo by Julia Gartland

During the pandemic, everyone seemed to cycle through new routines: baking sourdough bread, getting together with old friends for virtual happy hours, or falling in love with a new at-home workout. I started habitually drinking smoothies at least once a day. I found myself completely reenergized after polishing off a pint glass filled with blended dragon fruit, bananas, peaches, pineapple, and mixed berries. My newfound ability to power through any sign of an afternoon slump was accompanied by an overzealous hand in the kitchen. I went from carefully measuring each type of frozen fruit before adding it to the blender to eyeballing everything. I lost my practiced touch and ultimately dumped the excess smoothie down the drain day after day…that is, until I was scrolling through Instagram one night and watched a story posted by my colleague, Food52's Associate Editor Caroline Mullen.

She had whipped up a green smoothie earlier in the day and poured the leftovers into a silicone ice cube tray to freeze. I was immediately impressed and subsequently face palmed—why did I never think of this before?

Using ice cube trays to save leftover smoothies is obviously less wasteful than pouring it into the sink, but it’s also so much more convenient than measuring (err, eyeballing) fruit day after day. If you want to get ahead on meal prep, purposely make an extra-large smoothie, pour the leftover mix into an ice cube tray, and freeze. Or, if you’re feeling playful, pour the leftovers into an ice pop mold and save it for a sweltering summer day.

As you now know, don’t do as I do. Don’t just pour your smoothie down the drain. Oh, and definitely don’t use regular plastic ice cubes trays to store your smoothies. When frozen, the smoothie cubes stuck to plastic ice cube trays (unless I aggressively banged the tray on the countertop, which ultimately meant that my parents’ brand new white quartz countertop was suddenly streaked with pink dragonfruit).

The solution? Souper Cubes! These silicone-based trays are super flexible, which means you can easily pop out the frozen smoothie cubes for blending. The smallest size measures out to 2-tablespoon portions, which makes it easy to prep smoothies early in the morning. I found that six cubes were the perfect amount to make a single serving. Plus, Souper Cubes include a super (pun intended) convenient lid so I won’t spill the juicy leftovers as I’m placing the tray in the freezer.

Our Favorite Smoothie Recipes

Time to put this method to the test! Whip up a few of our favorite smoothie recipes—and make a little bit extra so you can store the leftovers in ice cube trays for days.

Green Smoothie With Avocado

Fresh avocado (and banana!) keeps this graciously green smoothie super creamy, which means that it will also reblend easily when it’s time for round two.

Golden Milk Smoothie

In some ways, this is an Elvis sandwich in the form of a big, delicious smoothie—it starts with a spoonful of peanut butter, a duo of almond milk and coconut milk, and banana. Chopped fresh ginger and turmeric are not only revitalizing ingredients, but they also help create the drink’s muted yellow hue.

Berry Banana Oat Smoothie

This is my go-to smoothie recipe: I will always, always, always choose to blend a combination of berries, banana, oats, chia seeds, and almond milk.

What’s your favorite smoothie recipe? Let us know in the comments below!
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See what other Food52 readers are saying.

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  • AntoniaJames
  • Kelly Vaughan
    Kelly Vaughan
Former Food52 Staff Editor


Mar April 7, 2022
I apologize. I didn’t realize how cynical I sounded. I’m really not like that. : )
Mar April 7, 2022
I’m surprised anyone would dump their leftover smoothie - what makes it leftover? That it doesn’t fit in the glass?? If you don’t want all of it right away, put it in the fridge or freeze in tupperware or a plastic or paper cup! This article seems a little ingenious to me - a way to sell Souper cubes.
Kelly V. April 7, 2022
I often make too much smoothie and have a lot leftover in the blender! I like using ice cube trays (like Souper cubes!) for freezing because it's easy to pop the leftover cubes out and helps me easily portion my next smoothie :)
AntoniaJames March 30, 2022
Yes, Souper Cubes are the best! I had not thought to use them for something like this but frankly, it's brilliant. I like the tight lids on them, which keep everything nice and fresh. I've given many trays of Souper Cubes as gifts, in all sizes - but especially the smallest size, which are perfect for pestos, tomato paste, etc. I cannot recommend them highly enough! ;o)