Weldwerks End of the Rainboba 4Pk

WeldWerks End of the Rainboba 4Pk is a limited-release imperial smoothie sour ale from Greeley, Colorado, clocking in at 8.5% ABV. Rated 4.1 out of 5 on Untappd across more than 1,450 ratings, this pastry sour stands out in a crowded field by layering strawberry, lemon, and orange boba syrups over a base that includes rainbow candy, magic marshmallow cereal, and marshmallow — a combination that reads like a candy shop inventory but delivers a genuinely layered drinking experience.

Quick Facts: ABV: 8.5%  |  Origin: Greeley, Colorado  |  Style: Imperial Smoothie / Pastry Sour  |  Brewery: WeldWerks Brewing Co.

Production & Heritage

WeldWerks Brewing Co. operates out of Downtown Greeley, Colorado, where all production takes place on a 15-barrel, three-vessel steam brewhouse. End of the Rainboba begins as an imperial kettle sour base, which is then conditioned with strawberry, lemon, and orange boba syrups — the flavored syrups commonly associated with bubble tea — alongside rainbow candy, magic marshmallow cereal, and marshmallow. The boba syrup element is a deliberate nod to the bubble tea trend, pushing the beer beyond typical fruit-puree smoothie sours into genuinely novel territory. The result is a thick, opaque pour with a distinctly dessert-forward character that separates it from standard fruited sours in the WeldWerks lineup.

Tasting Notes

Aroma: The nose opens with a rush of candied strawberry and citrus zest, followed by a marshmallow sweetness that recalls freshly opened cereal. A faint tartness lingers underneath, keeping it from reading as purely confectionery.

Taste: On the palate, the strawberry boba syrup arrives first — bright, sugary, unmistakably fruity. The mid-palate broadens with lemon and orange citrus notes that introduce a tangy counterpoint, while the marshmallow cereal addition creates a creamy, almost milkshake-like body. The underlying sour base provides enough acidity to prevent the sweetness from becoming one-dimensional.

Finish: Medium in length with a lightly tart, candy-like fade. The marshmallow sweetness persists gently, leaving a soft, rounded impression rather than a sharp sour snap.

How to Drink End of the Rainboba

Serve cold, around 38–42°F, in a tulip glass or stemless wine glass to concentrate the aromatics. Given its 8.5% ABV and thick body, sipping slowly is the move — this is not a session beer. End of the Rainboba also works surprisingly well in beer-forward mixed drinks: try it in a Beer Mimosa topped with a splash of orange juice to amplify the citrus boba notes; blend it into a Smoothie Sour Shandy with lemonade for a lighter, patio-ready drink; or float it over vanilla ice cream for a Sour Beer Float that leans into the dessert character of the marshmallow cereal base.

Best For

• Surprising a craft beer enthusiast who thinks they've tried everything in the sour category
• Dessert-course pairing at a beer dinner or tasting event
• Trading or sharing among smoothie sour collectors who follow limited brewery releases
• Bringing something genuinely unexpected to a bottle share with fellow hop heads

Frequently Asked Questions

What does End of the Rainboba taste like? It delivers a thick, dessert-forward profile dominated by candied strawberry and citrus boba syrup flavors, balanced by a creamy marshmallow sweetness and a tart sour ale backbone that keeps it drinkable.

How does End of the Rainboba compare to 450 North Slushy XL? Both occupy the smoothie sour category, but End of the Rainboba distinguishes itself with boba syrups and marshmallow cereal adjuncts rather than relying primarily on fruit purees. 450 North's Slushy XL series tends to deliver a more straightforward fruit-forward sweetness, while this WeldWerks release leans further into the candy and confectionery spectrum.

Is End of the Rainboba good for sipping on its own? Yes — the 8.5% ABV and thick, smoothie-like body make it best enjoyed slowly as a standalone pour, ideally well-chilled in a proper glass rather than straight from the can.

Where is End of the Rainboba made? It is brewed by WeldWerks Brewing Co. at their Downtown Greeley, Colorado facility on a 15-barrel, three-vessel steam brewhouse.

What foods pair well with End of the Rainboba? Lemon bars complement the citrus boba syrups; strawberry cheesecake echoes the dominant fruit note; crispy rice treats mirror the marshmallow cereal character; sharp aged cheddar provides a savory contrast to the sweetness; and coconut macaroons add textural interest alongside the creamy body.

What sizes does End of the Rainboba come in? End of the Rainboba is sold as a 4-pack of cans, which is the standard format for WeldWerks limited smoothie sour releases.

Is End of the Rainboba worth the price? It positions as a premium limited-release smoothie sour, priced above everyday craft beer but in line with specialty pastry sour releases from comparable breweries — the unusual boba syrup and cereal adjuncts justify its place in the upper tier of the style.

Why End of the Rainboba?

In a smoothie sour landscape increasingly crowded with fruit-puree variations, End of the Rainboba carves out its own lane by incorporating boba syrups — an adjunct choice borrowed from the bubble tea world rather than the fruit stand. The layering of strawberry, lemon, and orange boba syrups with rainbow candy and magic marshmallow cereal produces a flavor profile that has no direct analog in the category. A 4.1 Untappd rating across more than 1,450 check-ins confirms broad drinker approval, not just hype. For anyone actively seeking out the outer edges of what a sour ale can be, this WeldWerks release delivers genuine novelty backed by sound brewing execution on their Greeley brewhouse.