Pipeworks Napkin Math 4Pk

Pipeworks Napkin Math 4Pk is a 7.6% ABV American stout brewed with peaches, produced by Pipeworks Brewing Company in Chicago, Illinois. This unconventional stout stands apart by layering ripe stone fruit character over a roasted malt base — an unusual combination that puts it in rare company within the stout category.

Quick Facts: ABV: 7.6%  |  Origin: Chicago, Illinois, USA  |  Style: American Stout with Peaches  |  Brewery: Pipeworks Brewing Company

Production & Heritage

Pipeworks Brewing Company was founded in 2012 in Chicago by Beejay Oslon and Gerrit Lewis, quickly earning a reputation for inventive, small-batch beers that push stylistic boundaries. Napkin Math follows that ethos by introducing peaches into an American stout framework — a deliberate collision of roasted grain bitterness and sweet stone fruit. The result is a beer that challenges expectations of what a stout can deliver, keeping the dark malt backbone intact while weaving in a pronounced fruit dimension.

Tasting Notes

Aroma: Ripe peach arrives first and dominates the nose, followed by a deeper undercurrent of molasses and dark roasted malt. The fruit sweetness is prominent but grounded by the stout's inherent toasted grain character.

Taste: The palate opens with a wave of peach flavor that is surprisingly forward for a stout. Mid-palate, roasted grain and lightly charred malt emerge, lending structure beneath the fruit. The body runs lighter than many stouts at this ABV, which allows the peach to remain the focal point rather than getting buried under heavy malt weight.

Finish: A mild tartness lingers alongside fading roasted grain, creating a slightly dry, clean close. The peach echo persists briefly, giving the finish an unexpected brightness for a dark beer.

How to Drink Napkin Math

Serve at 45–50°F in a tulip glass or snifter to let the peach aromatics open up fully; pouring too cold will mute the fruit character. This stout pours a striking reddish-black with a finger and a half of foamy head that settles into a thin cap with moderate lacing. While fruit stouts are not traditional cocktail bases, Napkin Math works well in a Beer Float paired with vanilla bean ice cream, where the peach and roast malt complement the cream. It also holds its own in a Black Velvet riff, replacing traditional stout alongside sparkling wine for a fruit-forward twist. For a simple mixed drink, try a Stout Shandy with fresh peach nectar to amplify the stone fruit notes.

Best For

• Craft beer enthusiasts exploring fruit-forward stout variations
• Pairing alongside a late-summer barbecue spread
• Sharing with friends who enjoy boundary-pushing Chicago craft beer
• Adding variety to a tasting flight of American stouts

Frequently Asked Questions

What does Napkin Math taste like? Napkin Math delivers bold peach flavor up front, supported by roasted grain and molasses undertones, with a lighter body than a typical American stout and a mildly tart, dry finish.

How does Napkin Math compare to a traditional American stout? A standard American stout typically focuses on roasted malt, chocolate, and coffee bitterness, whereas Napkin Math shifts the spotlight to ripe peach while retaining a supporting roasted grain framework. The body is also notably lighter than many stouts at 7.6% ABV, making the fruit character more transparent.

Is Napkin Math good for craft beer beginners? Its prominent peach sweetness and lighter body make it more approachable than many dark beers, though the unusual stout-meets-stone-fruit combination may appeal most to drinkers already comfortable exploring experimental styles.

Where is Napkin Math made? Napkin Math is brewed by Pipeworks Brewing Company in Chicago, Illinois, a brewery founded in 2012 that specializes in creative, limited-release beers distributed primarily across the Midwest and select U.S. markets.

What foods pair well with Napkin Math? Grilled peach and prosciutto salad mirrors the beer's fruit character; smoked pork ribs complement its roasted malt base; aged sharp cheddar contrasts the stone fruit sweetness; chocolate lava cake echoes the dark malt while pairing with the peach; and peach cobbler doubles down on the fruit theme for dessert.

What sizes does Napkin Math come in? Napkin Math is available as a 4-pack of cans, the standard format for Pipeworks seasonal and specialty releases.

Is Napkin Math worth the price? Napkin Math positions as a specialty craft offering within the Pipeworks lineup, sitting at a typical premium craft 4-pack price point — reasonable given the unconventional recipe and the brewery's reputation for inventive small-batch releases.

Why Napkin Math?

The defining move here is the addition of peaches to an American stout — a pairing that most breweries do not attempt. Rather than producing a gimmicky novelty, Pipeworks manages to keep the roasted malt skeleton intact while allowing genuine stone fruit to reshape the flavor profile. The lighter-than-expected body at 7.6% ABV makes the beer more drinkable than many stouts of comparable strength, and the mild tartness on the finish adds a layer of complexity that keeps each sip interesting. For anyone who has worked through the usual chocolate-and-coffee stout lineup and wants something genuinely different, Napkin Math delivers a well-executed detour.