When the first blush of spring arrives and rhubarb starts to make its vibrant appearance at the farmer’s market, my excitement is palpable. There’s something intoxicating about the tartness of fresh rhubarb, evoking memories of sun-soaked afternoons and the refreshing sip of cool drinks on warm days. That’s how I stumbled upon my go-to recipe for Rhubarb Lemonade Concentrate—a delightful blend that’s as versatile as it is refreshing.
Not only does this concentrated treat elevate your summer beverages, but it’s also a wonderful solution for those long, lazy days when fast food just won’t cut it. With a simple simmer and a few key ingredients, you’ll find yourself with jars of this tangy goodness, ready to brighten any moment. Whether enjoyed straight up or mixed into cocktails, this homemade concentrate is bound to become a staple in your kitchen. So, let’s dive in and create something special together!
Why is Rhubarb Lemonade Concentrate so special?
Refreshing Simplicity: This recipe is a breeze to whip up, requiring only minimal ingredients and effort.
Bursting with Flavor: The balance of tart rhubarb and zesty lemon creates a flavor that’s both invigorating and delicious.
Versatile Delight: Enjoy it as a chilled drink, or elevate your cocktails with a splash for a unique twist.
Perfect for Batch Cooking: Make a large batch and store it for future use, ensuring you always have a refreshing sip on hand.
Family-Friendly: Kids and adults alike will love this homemade treat, making it a hit for any gathering!
Rhubarb Lemonade Concentrate Ingredients
For the Base
- Diced rhubarb – 9 cups, fresh rhubarb adds a vibrant tang to your concentrate.
- Water – 3 cups, used to simmer the rhubarb and release its natural flavors.
- Rhubarb juice – 6 cups, this is what brings the rhubarb lemonade concentrate to life and delivers its signature taste.
For the Zing
- Lemon juice – 2 cups, freshly squeezed lemon juice brightens the taste and complements the tartness of the rhubarb.
For the Sweetness
- Granulated sugar – 6 cups, this not only sweetens but also helps preserve the concentrate for future enjoyment.
This delightful Rhubarb Lemonade Concentrate is just a few simple ingredients away!
How to Make Rhubarb Lemonade Concentrate
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Combine the diced rhubarb and water in a large pot. Bring to a rolling boil, then reduce the heat and simmer, covered, until the rhubarb is soft and the liquid is fragrant, about 15 minutes.
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Strain the mixture through a jelly bag or a fine-mesh strainer lined with damp cheesecloth to get that beautiful rhubarb juice. Avoid pressing the pulp to keep your juice clear and lovely.
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Prepare a water bath canner and heat the water until it simmers. Give the jars and lids a good wash in hot soapy water and keep them piping hot.
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Juice the lemons and strain well to catch any seeds and pulp. Set this bright juice aside as it will really elevate the flavor!
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Combine the rhubarb juice with the strained lemon juice and granulated sugar in a clean pot. Stir gently until you see the sugar begin to dissolve.
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Heat the mixture over medium heat, stirring frequently until the sugar has completely dissolved and the mixture reaches 190°F. Keep a close eye—don’t let it boil!
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Ladle the hot concentrate into the prepared jars, leaving about 1/4 inch of headspace. Use a bubble tool or a thin spatula to release any trapped air bubbles before wiping the rims to ensure a tight seal.
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Center a lid on each jar and screw the band down to fingertip tight. Place the jars in the canner, ensuring they’re covered by 1-2 inches of water.
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Bring the canner to a full rolling boil and process for 15 minutes, making adjustments for altitude if necessary.
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Turn off the heat and let the jars sit in the canner for 5 minutes before removing them.
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Set the jars on a towel and leave them undisturbed for 12 to 24 hours. Resist the urge to tighten the bands during this cooling period!
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Check the seals by gently pressing the center of each lid; a properly sealed lid won’t flex at all. Store your sealed jars in the pantry, ready to brighten up your drinks!
Optional: Serve chilled over ice with a sprig of mint for a refreshing twist.
Exact quantities are listed in the recipe card below.
Make Ahead Options
These Rhubarb Lemonade Concentrate preparations are perfect for busy home cooks looking to save time without sacrificing taste! You can make the rhubarb juice up to 3 days in advance by simmering the diced rhubarb with water, straining it, and storing the juice in the refrigerator. Another great option is to combine the rhubarb juice and lemon juice mixture with sugar ahead of time; simply refrigerate this mixture for up to 24 hours. When you’re ready to finalize the concentrate, heat the mixture until the sugar fully dissolves and process it as instructed. This way, you’ll have your delightful concentrate ready to go, bringing convenience to your summer sipping!
Rhubarb Lemonade Concentrate Variations
Feel free to make this recipe your own with delightful twists that will tickle your taste buds!
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Minty Fresh: Add a handful of fresh mint leaves to the boiling rhubarb for a refreshing herbal note. The coolness of mint pairs beautifully with the tangy lemonade.
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Ginger Kick: Stir in a tablespoon of freshly grated ginger during the simmering process for a spicy warmth. This adds a zing that dances on your palate and makes each sip exciting.
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Berry Bliss: Blend in a cup of mashed strawberries or raspberries after straining the juice for a fruity explosion. The added sweetness from the berries brings a whole new dimension to your lemonade.
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Honey Sweetener: Substitute granulated sugar with honey for a natural sweetener. This will give your concentrate a floral note that’s simply delightful, especially when served over ice.
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Sparkling Twist: For a bubbly version, mix your concentrate with sparkling water before serving. This effervescent touch turns your drink into a delightful summer spritzer that’s perfect for gatherings.
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Citrus Punch: Incorporate other citrus juices like lime or orange to the base for a zesty profile. A blend of flavors brings layers of brightness that everyone will love.
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Chili Heat: Add a pinch of chili flakes to the simmering pot for a subtle kick. A little heat in your lemonade might just become your new favorite thing!
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Alcoholic Delight: Transform your concentrate into a refreshing cocktail by mixing it with vodka or gin. Serve over ice for a fun twist on happy hour!
Let your creativity flow and enjoy experimenting with these variations!
What to Serve with Rhubarb Lemonade Concentrate?
Create the ultimate summer experience with these delightful complementing flavors and textures.
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Sparkling Water: Effervescent and refreshing, sparkling water enhances the tangy notes of the concentrate while adding a zesty fizz to your drink.
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Fresh Mint Leaves: A handful of mint elevates your glass with a bright, aromatic charm that harmonizes beautifully with the tartness of rhubarb.
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Grilled Chicken Skewers: Juicy skewers brushed with citrus glaze pair perfectly, balancing the sweetness of the concentrate with savory flavors. Try serving them alongside tall glasses for summer gatherings!
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Fruit Salad: A colorful melange of berries and melons adds a sweet counterpart to the tartness, creating a beautiful balance on any brunch spread.
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Ice Cream Floats: Pour a splash of the rhubarb concentrate over scoops of vanilla ice cream. The creamy sweetness mellows the tartness, creating an indulgent dessert option.
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Lemon Bars: Bright and tangy lemon bars echo the lemony flavor in the concentrate, making them a perfect treat to serve alongside drinks on a sunny afternoon.
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Coconut Macaroons: Chewy, sweet macaroons contrast beautifully with the acidity of the lemonade, providing a satisfying texture and sweetness that enhances the whole experience.
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Chilled Shrimp Cocktail: The refreshing taste of chilled shrimp with tangy cocktail sauce complements the flavors in your concentrate, offering a bite of luxury to your gathering.
How to Store and Freeze Rhubarb Lemonade Concentrate
Room Temperature: Store unopened jars of your Rhubarb Lemonade Concentrate in a cool, dark pantry for up to 1 year.
Fridge: Once opened, keep the concentrate in the refrigerator for up to 3 weeks. Make sure to seal it tightly to maintain freshness.
Freezer: For long-term storage, freeze the concentrate in airtight containers for up to 6 months. Leave some space for expansion as it freezes.
Reheating: When ready to enjoy, thaw the frozen concentrate in the fridge overnight or on the counter for a few hours. Mix with water or sparkling water to taste!
Expert Tips for Rhubarb Lemonade Concentrate
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Choose Fresh Rhubarb: Select firm, vibrant rhubarb stalks to ensure maximum flavor. Avoid any that are wilted or have signs of browning.
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Juicing Technique: When preparing rhubarb juice, don’t press down on the pulp while straining. This prevents cloudiness and keeps your concentrate clear and appealing.
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Temperature Matters: Make sure your mixture reaches exactly 190°F; overheating can lead to caramelization, resulting in an off flavor in your Rhubarb Lemonade Concentrate.
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Headspace is Key: Leaving 1/4 inch of headspace when filling jars is crucial for proper sealing during the canning process, helping to prevent spoilage.
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Cooling Time: Allow jars to cool undisturbed for 12 to 24 hours. This ensures a proper seal; retightening can accidentally compromise the seal and lead to spoilage.
Rhubarb Lemonade Concentrate Recipe FAQs
How do I know if my rhubarb is ripe?
Absolutely! When selecting rhubarb, look for firm stalks with a vibrant, deep green or reddish hue. Avoid any that appear wilted or have dark spots all over, as these may be past their prime. Fresh rhubarb should feel crisp and juicy to the touch, ensuring you have the best flavor for your concentrate.
What’s the best way to store Rhubarb Lemonade Concentrate?
For unopened jars of your Rhubarb Lemonade Concentrate, store them in a cool, dark pantry where they will last up to 1 year. Once opened, transfer any remaining concentrate to the refrigerator, where it should stay good for up to 3 weeks. Always ensure the lid is tightly sealed to keep it fresh!
Can I freeze Rhubarb Lemonade Concentrate?
Very! Freezing is a great way to preserve your concentrate. Pour the cooled concentrate into airtight containers, leaving some space at the top for expansion as it freezes. It will last for up to 6 months in the freezer. Thaw it overnight in the fridge or for a few hours on the counter before enjoying.
What should I do if my concentrate is too sweet or too tart?
If you find your Rhubarb Lemonade Concentrate too sweet, consider adding a small amount of additional lemon juice, about 1 tablespoon at a time, until it suits your taste. If the flavor is too tart, a pinch more sugar can balance it out. Always mix well and taste after each adjustment to get it just right!
Is Rhubarb safe for my pets?
While rhubarb is generally safe for humans, it’s important to know that rhubarb leaves are toxic to pets. If you’re making this concentrate or using rhubarb in your kitchen, be sure to keep it out of reach of your cats or dogs. The stalks, however, are non-toxic and safe in moderation.
What should I do if my jars don’t seal properly?
If you notice that some jars haven’t sealed, don’t worry! Simply reprocess those jars by removing the lid and rechecking the rim for any food particles. Then, re-ladle the hot concentrate back into the jars, re-cover them with new lids, and process them again in the water bath for 15 minutes. Alternatively, you can refrigerate the unsealed jars and use the concentrate within a few weeks.

Rhubarb Lemonade Concentrate: Refreshingly Sweet Summer Sip
Ingredients
Equipment
Method
- Combine the diced rhubarb and water in a large pot. Bring to a rolling boil, then reduce the heat and simmer, covered, until the rhubarb is soft and the liquid is fragrant, about 15 minutes.
- Strain the mixture through a jelly bag or a fine-mesh strainer lined with damp cheesecloth to get the rhubarb juice.
- Prepare a water bath canner and heat the water until it simmers. Wash jars and lids in hot soapy water.
- Juice the lemons and strain well to catch any seeds and pulp.
- Combine the rhubarb juice with the strained lemon juice and granulated sugar in a clean pot. Stir gently until sugar dissolves.
- Heat the mixture over medium heat, stirring frequently until the mixture reaches 190°F.
- Ladle the hot concentrate into prepared jars, leaving about 1/4 inch of headspace.
- Center a lid on each jar and screw the band down to fingertip tight. Place the jars in the canner.
- Bring the canner to a full rolling boil and process for 15 minutes.
- Turn off the heat and let the jars sit in the canner for 5 minutes before removing them.
- Set the jars on a towel and leave them undisturbed for 12 to 24 hours.
- Check the seals by gently pressing the center of each lid.







