What is hop water?
Hop water is sparkling water infused with hops, the same cone-shaped flowers that give an IPA its
grapefruit, pine and tropical-fruit aroma, with no alcohol (0.0% ABV), no calories, no sugar and no gluten.
Nothing is fermented: the hops are steeped in water like tea, or dosed in as a natural hop extract, then the water is
carbonated and canned. It tastes like the smell of a craft beer in the body of a seltzer: dry, crisp, lightly bitter.
Some brands build on brewed tea instead of plain water (hop tea, which can carry caffeine), and a few add
adaptogens such as ashwagandha and L-theanine. It is drunk by people cutting back on alcohol, athletes and
parents who still want something that reads as “a beer” at the end of the day, and IPA fans who are simply tired
of seltzer. It differs from non-alcoholic beer in that NA beer is brewed from malt and then de-alcoholized or
arrested at under 0.5% ABV, so it keeps beer body, 25 to 90 calories and barley gluten. Hop water skips the grain
entirely.
0.0% alcohol0 calories (most brands)0 sugarNo grain, no glutenCaffeine only in hop teasInvented 2014 (H2OPS)
Every brand below was checked against its own site or a dated 2026 retail listing. “Find on Amazon”
opens an Amazon search for that brand and carries our affiliate tag: as an Amazon Associate we earn from qualifying
purchases at no cost to you. It never affects who is listed. Nobody pays to be here.
HoplarkHopTea · Sparkling Hop Water · Hoplark 0.0
📍 Boulder, Colorado · est. 2018
The category's biggest independent. Three lines: HopTea (sparkling tea brewed on black, green, white, chamomile or hibiscus, then hopped), Sparkling Hop Water in single-hop Citra, Mosaic and Sabro, and Hoplark 0.0 (Citra and Really Really Hoppy), the closest thing to a dry-hopped IPA with no beer in it. Partly owned and distributed by Brooklyn Brewery.
- Flavors
- HopTea: The Really Hoppy One, The Citra Bomb One, The Green Tea One, The Calm One, The Mile-High-Biscus One · Water: Citra, Mosaic, Sabro · 0.0: Citra, Really Really Hoppy
- Calories
- 0 (all lines), 0 sugar
- Caffeine
- Teas: Really Hoppy ~60–70 mg, Green Tea ~50–60 mg, Citra Bomb ~20–30 mg; Calm and Hibiscus 0. Waters and 0.0: none
- Where
- Whole Foods, Sprouts, Kroger, H-E-B, Albertsons, Meijer, Total Wine; online ($39.99/12 tea, $41.99/18 water)
national0 calcaffeine (teas)hop tea
Lagunitas Hoppy RefresherLagunitas Brewing Company (Heineken)
📍 Petaluma, California
The one most people try first, and the easiest to find in a regular grocery cooler. Citra, Equinox and Centennial hops plus “a pinch of brewer's yeast” for aroma. The original is clean and unflavored; the fruit versions are splashed, not sweet.
- Flavors
- Original, Blood Orange, Berry Lemon (variety 12-pack)
- Calories
- 0, 0 carbs
- Caffeine
- None
- Where
- National grocery, Walmart, Total Wine, Amazon; about $10 per 6-pack
national0 cal
Sierra Nevada Hop SplashSierra Nevada Brewing Co.
📍 Chico, California · Mills River, North Carolina
Steeped with Citra and Amarillo in a process Sierra Nevada likens to dry-hopping, then carbonated. The most bitter-forward of the national cans (reviewers compare it to a tonic). A 2025 relaunch added a fruit variety pack with real juice concentrate.
- Flavors
- Original · Grapefruit & Blood Orange · Lemon & Lime (Crystal hops) · Peach & Passion Fruit (Krush hops)
- Calories
- 0 on the original; fruit flavors use juice concentrate and are labeled zero with an asterisk, so read the panel
- Caffeine
- None
- Where
- National grocery, Whole Foods, Walmart, Total Wine ($9.99 per 6-pack)
national0 cal
HOP WTRSparkling hop water with adaptogens · Constellation Brands
📍 Los Angeles, California · est. 2020
The brand with the most flavors and the biggest marketing budget; Constellation (Corona, Modelo) bought a stake in 2021 and took full ownership in 2026. Dry-hopped water plus ashwagandha and L-theanine. A January 2026 collab with Stone Brewing (Centennial Citrus, with Stone IPA's Centennial, Mosaic and El Dorado hops) is the hoppiest in the range.
- Flavors
- Classic, Blood Orange, Mango, Peach, Ruby Red Grapefruit, Lime, Double Hopped, Spiced Apple, Pickle Lemonade · Iced Tea & Lemonade, Raspberry Iced Tea, Peach Iced Tea · HOP WTR × Stone Centennial Citrus
- Calories
- 0, 0 sugar, 0 carbs
- Caffeine
- Not listed on the core line; the iced-tea flavors are tea-based, so check the can
- Where
- Whole Foods, Total Wine ($21.49/12), Walmart, H-E-B, Amazon; online $29.99/12
national0 calhop tea line
H2OPSThe original craft-brewed hop water
📍 Anaheim, California · est. 2014
Homebrewer Paul Tecker's 2014 creation, and the product that named the category. Brewed from whole hops, organic, unsweetened and the most beer-like of the plain hop waters. Small company; flavors sell out online.
- Flavors
- Original (organic), Grapefruit, mixed pack
- Calories
- 0
- Caffeine
- None (and “adaptogen free”)
- Where
- Smart & Final, BevMo, Walmart, Nugget, Andronico's (West Coast); online
0 calwest coast + online
Kentucky Hop WaterBrewed at Against the Grain
📍 Louisville, Kentucky · launched Oct 2024
“The first hop water canned in Kentucky.” Citra and Amarillo in limestone-filtered Kentucky water, which is the bourbon-country pitch. Citrus and tropical up front, floral finish.
- Flavors
- The Original, Dark Berry, Mango
- Calories
- 0, 0 sugar, 0 carbs
- Caffeine
- None
- Where
- Kentucky retail (store locator); online $8.49 per 4-pack
0 calregional + online
Partake Hop TwistPartake Brewing
📍 Toronto, Canada · sold in the US · launched Jan 2025
From the non-alcoholic beer specialist. Citra and Mosaic hops with a splash of real citrus juice, so it is rounder and less bitter than the brewery cans; the marketing says “no bitterness.” Good first can for someone who found Hop Splash too sharp.
- Flavors
- Citrus-tropical (one flavor)
- Calories
- Not published; contains juice, so assume a few
- Caffeine
- None
- Where
- Total Wine, BevMo, online (US and Canada)
national (Total Wine)
Hazard's Hop WaterIndependent, Central Valley
📍 Clovis, California · 2024
Homebrewer-turned-founder Ryan Hansen's line, the one that shows up on golf-course carts around Fresno. Six flavors, hot-steeped Citra, with added B vitamins. Ships nationally from the site.
- Flavors
- Classic Citra, Grapefruit, Lime & Mint, Passion Fruit, Watermelon, Tea & Lemonade
- Calories
- 0 sugar, 0 carbs
- Caffeine
- None listed
- Where
- Online ($19.99 per 6-pack), Central Valley restaurants and golf courses
0 caltea flavoronline + local
Revolution Super ZeroRevolution Brewing
📍 Chicago, Illinois
Chicago's biggest brewery dry-hops water with whole Sabro and Nectaron pellets at the same rate as its Anti-Hero IPA. No oils, extracts or sweeteners: carbonated water, hops, citric acid. Coconut, pineapple and stone fruit.
- Flavors
- One (Sabro & Nectaron)
- Calories
- 0, 0 sugar
- Caffeine
- None
- Where
- Midwest retail (finder on site), taproom, online
0 calbrewery-made
Short's Thirst MutilatorShort's Brewing × Billy Strings
📍 Bellaire, Michigan · since 2022
Made with natural hop oils rather than steeped cones, which gives it a cleaner, soda-like fruit character. The bluegrass musician's name is on the can. Orange arrived October 2025; the Michigan-only variety pack adds Cherry Vanilla.
- Flavors
- Lemon Lime, Grape, Orange (+ Cherry Vanilla in the variety pack)
- Calories
- 0, 0 carbs
- Caffeine
- None
- Where
- Michigan and Short's distribution states, Total Wine, 12 oz and 16 oz cans; ships from the brewery
0 calbrewery-made
Surly Sparkling Hop Water N/ASurly Brewing Co.
📍 Minneapolis, Minnesota
Citra and Mosaic, the exact hop bill of Surly's Axe Man IPA, in water with a little vitamin C and citric acid. Big aroma, low bitterness, clear as seltzer. On tap at the beer hall too.
- Flavors
- One (Citra & Mosaic)
- Calories
- 0, 0 carbs
- Caffeine
- None
- Where
- 13 states: MN, WI, IA, ND, SD, IL, MI, MO, NE, CO, KS, TX, AZ; online shop
0 calbrewery-made
Allagash Sparkling Citrus Hop WaterAllagash Brewing Company
📍 Portland, Maine
The Belgian-style specialists' first non-alcoholic product. Crystal and Citra hops with sweet orange peel and coriander, the same spice drawer as Allagash White, so it reads like a witbier's aroma over seltzer.
- Flavors
- One (citrus)
- Calories
- 0, 0 carbs
- Caffeine
- None
- Where
- Allagash's online shop and taproom, 12 oz 6-packs; Northeast distribution
0 calbrewery-made
Pelican Sparkle HopsPelican Brewing Company
📍 Pacific City, Oregon
Beach-brewery hop water built around Oregon hops, each paired with a fruit: Citra with lemon, Strata with açaí. Strata is the one to try if you like the dank, passion-fruit end of the hop spectrum.
- Flavors
- Citra & Lemon, Strata & Açaí, plus rotating flavors (five in total)
- Calories
- 0
- Caffeine
- None
- Where
- Fred Meyer, Safeway, Albertsons, WinCo, New Seasons (Pacific Northwest); online shop
0 calbrewery-made
Aslan Sparkling Hop WaterAslan Brewing Co.
📍 Bellingham, Washington · Seattle taprooms
The purist's can: organic brewery, water and whole-cone hops only, no citric acid or “natural flavors.” Cascade and Chinook in Bellingham (Cascade and Simcoe on the Seattle menu). Dry, matcha-like, grapefruit. Cheapest hop water on this page.
- Flavors
- One (house recipe)
- Calories
- 0
- Caffeine
- None
- Where
- Taprooms only (draft and cans): $7 per 6-pack, $26 per 24
0 caltaproom only
Easy Living Hop WaterDenver Beer Co.
📍 Denver, Colorado
Billed as the first Colorado brewery hop water to reach liquor-store shelves statewide. Two flavors, the hibiscus one being a rarity in the category: pink, tart and floral.
- Flavors
- Citrus, Hibiscus, variety 12-pack
- Calories
- 0 sugar, gluten-free (calories not listed)
- Caffeine
- None
- Where
- Five Denver-area taprooms, Colorado retail (finder on site)
brewery-made
Von Ebert Boost · Flow · ChillVon Ebert Brewing
📍 Portland, Oregon · launched Jan 2026
A three-can “time of day” set. Boost is citrus with 70 mg of caffeine for the morning, Flow is tropical with electrolytes for the afternoon, and Chill is berry-floral brewed with lavender and chamomile for the evening. The most functional-drink approach of any brewery here.
- Flavors
- Boost (citrus), Flow (tropical), Chill (berry & floral)
- Calories
- Not listed
- Caffeine
- Boost 70 mg; Flow and Chill none
- Where
- Oregon, Washington, Colorado, California distribution; 12 oz cans; taprooms
caffeine (Boost)brewery-madenew 2026
Dust Bowl Hop WaterDust Bowl Brewing Co.
📍 Turlock, California · launched June 2026
The newest can on the page. Bright citrus character derived entirely from natural hop extracts, which keeps it crystal clear and consistent batch to batch. The brewery's first non-alcoholic product.
- Flavors
- One (citrus)
- Calories
- 0, 0 sugar, 0 gluten
- Caffeine
- None
- Where
- 12 oz 6-packs at four California taprooms and online
0 caltaproom + onlinenew 2026
Urban Chestnut Sparkling Hop WaterUrban Chestnut Brewing Company
📍 St. Louis, Missouri
A German-leaning brewery's take: Citra-hopped, unsweetened, in 16 oz cans at its two St. Louis beer halls. One of the earliest brewery hop waters (2019). A grapefruit version rotates in.
- Flavors
- Original (Citra), Grapefruit
- Calories
- 0
- Caffeine
- None
- Where
- The Grove Bierhall and Midtown Biergarten, St. Louis; 16 oz cans
0 caltaproom
Ommegang Belgian Inspired Hop WaterBrewery Ommegang
📍 Cooperstown, New York
Aquifer water, hops, lemon peel and ginger: a saison's spice rack with no beer. 5 IBU, so barely bitter. Taphouse only, which makes it the excuse for the drive.
- Flavors
- One (lemon & ginger)
- Calories
- Not listed
- Caffeine
- None
- Where
- Ommegang taphouse only; 16 oz cans and 4-packs
taproom only
No brands match that combination. Clear a filter.
GuideHow hop water is made
Every can on this page is some version of “get hop aroma into water without fermenting anything.” There are three
ways to do it, and the method explains most of the taste differences between brands.
1. Dry-hopped sparkling water
Whole hop cones or pellets are steeped in cold or warm water, exactly as a brewer dry-hops a finished IPA, then
the water is filtered and carbonated. Steep time runs from a few hours to a couple of days. This is how
Revolution, Aslan, H2OPS and Hoplark work. It gives the most authentic IPA aroma and a faint green, grassy edge,
and it is the most expensive method because the hops are used once and thrown away. A pinch of citric acid is
usually added to drop the pH, which is what keeps a sugar-free, alcohol-free drink shelf-stable.
2. Hop extract or hop oil
Hop aroma compounds are pulled out of the cone with CO2 or steam distillation and dosed into carbonated water
in tiny amounts. Short's (“natural hop oils”) and Dust Bowl (“all-natural hop extracts”) use this route. The result is
crystal clear, perfectly consistent from batch to batch, and a touch cleaner and more soda-like; it loses some of the
resinous complexity of steeped cones. Large volumes almost always rely on extract.
3. Hop tea
Hoplark's HopTea line, and the iced-tea flavors from HOP WTR and Hazard's, start with brewed tea (black, green,
white, chamomile, hibiscus) and hop it. The tea adds tannin and body, so it drinks less like seltzer and more like an
unsweetened iced tea with an IPA nose. Tea-based cans are the ones that can carry caffeine.
A few brewery versions add yeast after hopping (Lagunitas lists “a pinch of brewer's yeast”). With no sugar to
ferment, the yeast cannot make meaningful alcohol; it is there to transform some hop compounds into fruitier ones, a
trick borrowed from hazy IPA brewing. The cans are still labeled 0.0%.
GuideThe hops, and what they taste like
Hop water is a single-ingredient drink, so the hop variety is the flavor. These are the ones on the cans above.
| Hop | Tastes like | Found in |
|---|
| Citra | Grapefruit, lime, passion fruit; the default hop-water hop | Hoplark, Lagunitas, Sierra Nevada, Kentucky, Partake, Hazard's, Surly, Allagash, Pelican, Urban Chestnut |
| Mosaic | Blueberry, mango, pine, a little earthy | Hoplark, HOP WTR × Stone, Partake, Surly |
| Simcoe | Pine, passion fruit, resin; the classic West Coast IPA note | Aslan (Seattle), earlier Hop Splash Citrus |
| Amarillo | Orange, apricot, floral | Sierra Nevada original, Kentucky |
| Centennial | Floral citrus, “super Cascade” | Lagunitas, HOP WTR × Stone |
| Cascade & Chinook | Grapefruit and floral (Cascade); pine and spice (Chinook) | Aslan |
| Sabro | Coconut, tangerine, cedar; unmistakable | Hoplark Sabro, Revolution |
| Nectaron | Pineapple, passion fruit, peach (New Zealand) | Revolution |
| Strata | Passion fruit, strawberry, a dank cannabis-like note (Oregon) | Pelican |
| Crystal | Soft, woody, floral; low bitterness | Allagash, Sierra Nevada Lemon & Lime |
| El Dorado | Pear, watermelon, candy | HOP WTR × Stone |
| Krush | Tropical and citrus; a newer high-aroma variety | Sierra Nevada Peach & Passion Fruit |
| Ekuanot (Equinox) | Lime, papaya, green pepper | Lagunitas |
Rule of thumb: Citra, Mosaic and the New Zealand hops are fruity and easy; Simcoe, Chinook and Cascade are
piney and more “beer”; Sabro and Strata are the acquired tastes.
GuideHop water vs non-alcoholic beer vs seltzer
| Hop water | Non-alcoholic beer | Hard seltzer | Plain seltzer |
|---|
| Alcohol | 0.0% | Under 0.5% (some 0.0%) | 4–5% | 0.0% |
| Calories / 12 oz | 0 (a few with juice) | 25–90 | 90–100 | 0 |
| Sugar | 0 | 0–10 g | 0–2 g | 0 |
| Gluten | None (no grain) | Usually yes (barley) | Usually none | None |
| Caffeine | None, except hop teas | None | None | None |
| Tastes like | IPA aroma, dry, light bitterness, seltzer body | Beer, with malt body and sweetness | Fruit flavor, faint alcohol warmth | Nothing |
| Price per can | $1.20–$3.50 | $1.50–$3 | $1.50–$2.50 | $0.30–$0.80 |
Pick hop water when you want the beer ritual with none of the beer: zero calories, no bloat, no grain. Pick NA beer
when you want the body and the malt. The two are increasingly sold next to each other, often by the same brewery.
GuideCalories, sugar, caffeine, and who should be careful
Calories and sugar
Water, hops and carbon dioxide contain no calories, so a plain hop water is a true zero, same as seltzer. Watch
for two exceptions: cans with real fruit juice (Sierra Nevada's 2025 fruit flavors list juice concentrate and in some
cases sugar on the panel; Partake Hop Twist has a splash of citrus juice) and hop teas, which are still zero-calorie
but carry tea tannin. None of the brands above use sugar or sweeteners as a flavor base.
Caffeine
Absent unless tea is involved. Hoplark's black, green and white tea flavors run roughly 20 to 70 mg per 16 oz can
(a cup of coffee is about 95 mg). Von Ebert Boost adds 70 mg deliberately. Chamomile and hibiscus teas are
caffeine-free. If a can says “iced tea,” assume caffeine until the label says otherwise.
Who should be careful
- Hops are a mild sedative. Hop extract is a traditional sleep aid, recognized by European herbal regulators
for that use. The dose in a can is small and most people notice nothing, but if you are sensitive to sedating herbs
or take sleep medication, that is worth knowing.
- Pregnancy and breastfeeding. Hops contain 8-prenylnaringenin, one of the most potent plant estrogens known,
and there is no safety data for hop products in pregnancy. The amount in hop water is far below a supplement dose, but
clinicians generally say to ask first. The same applies to adaptogens such as ashwagandha in HOP WTR.
- Hormone-sensitive conditions. For the same phytoestrogen reason, people advised to avoid hop supplements
should treat hop water as the same ingredient in a smaller dose.
- Hops are toxic to dogs. Not the drink (a lick is fine) but the raw hops in the home recipe below. Keep
spent hops out of the compost your dog can reach.
This is general information, not medical advice.
GuideHow to make hop water at home
You need hop pellets from a homebrew shop (about $3 to $4 per ounce for Citra or Mosaic; one ounce makes 7 liters),
filtered water, citric acid or a lime, and a way to carbonate: a SodaStream, or plain seltzer to blend with a
concentrate. No yeast, no sugar, so nothing ferments and the result is genuinely 0.0%.
Cold steep (closest to the commercial cans)
- 4 g of hop pellets per liter of cold filtered water in a sealed jar. (That is roughly 1½ teaspoons of
pellets per liter; a kitchen scale is better.)
- Refrigerate 24 hours; shake once halfway. Longer than 48 hours adds grassiness, not aroma.
- Strain through a fine sieve, then a coffee filter. Pellet sludge is bitter; leave it behind.
- Add ⅛ teaspoon citric acid per liter (or the juice of half a lime). This brightens the hop flavor and
drops the pH so it keeps.
- Carbonate in a SodaStream at full pressure, or make the steep at 8 g per liter and cut it 1:1 with cold
seltzer.
- Drink within 3 to 4 days, refrigerated.
Hot steep (ready in 20 minutes)
- Heat water to 70–75 °C (160–170 °F), well below a boil. Boiling isomerizes the hop acids into harsh
bitterness, which is the one mistake that ruins hop water.
- Steep 2 g of pellets per liter for 10 to 15 minutes, lid on, like tea.
- Strain, chill fast (ice bath), add citric acid, then blend 1:1 with seltzer or carbonate.
Hot steeping pulls more flavor per gram but a touch more bitterness; cold steeping is softer and more aromatic.
Start with Citra alone, then try a 50/50 Citra and Mosaic blend, which is what half the brands on this page are
doing.
GuideWhere to buy hop water, and what it costs
Hop water near me: the fastest route is the non-alcoholic section at Total Wine (it has a dedicated hop water
category online and in store), then the beer cooler at Whole Foods, Sprouts, Kroger, H-E-B, Meijer and Walmart, which
carry Lagunitas, Sierra Nevada, HOP WTR and Hoplark. For the brewery-made cans, use the brewery's own store locator
(Hoplark, HOP WTR, Sierra Nevada, Lagunitas, Pelican, Surly, Revolution, Kentucky and Denver Beer Co. all have one) or
go to the taproom. Amazon stocks HOP WTR, Hoplark, Lagunitas and Sierra Nevada in 12-packs.
| Where | Typical price | Per 12 oz can |
|---|
| Grocery 6-pack (Lagunitas, Sierra Nevada) | $9–11 | $1.50–1.85 |
| Total Wine 12-pack (HOP WTR variety) | $21.49 | $1.80 |
| HOP WTR × Stone 6-pack (Total Wine) | $10.99 | $1.85 |
| HOP WTR direct, 12-pack | $29.99 | $2.50 |
| Hoplark direct, 18-pack water / 12-pack tea | $41.99 / $39.99 | $2.33 / $3.33 (16 oz) |
| Kentucky Hop Water 4-pack | $8.49 | $2.12 |
| Hazard's 6-pack, shipped | $19.99 | $3.33 |
| Aslan taproom 6-pack | $7 | $1.17 |
Prices observed October 2026 and will drift; direct-to-consumer prices usually exclude shipping. The cheapest hop
water in America is poured at a brewery taproom; the most expensive is shipped in a box.
Is hop water alcoholic?
No. Hop water is labeled 0.0% ABV. It is carbonated water steeped with hops, and no fermentation takes place, so no alcohol is produced. A few brewery versions add a trace of yeast for aroma and still test under the 0.5% limit that defines non-alcoholic in the US.
Is hop water gluten-free?
Yes, in practice. Hop water contains no barley, wheat or malt, and every brand in this directory describes itself as gluten-free. Hops are not a gluten source. If you have celiac disease, check whether the can was filled on a shared brewery line.
Does hop water taste like beer?
It tastes like the aroma of an IPA without the body: citrus, pine and tropical fruit notes from the hops, a dry finish and a light bitterness, in a drink as thin and crisp as seltzer. There is no malt sweetness, so it does not taste like a full beer.
Can kids drink hop water?
There is nothing age-restricted in a plain hop water, and no retailer cards for it. Hops are a traditional sedative herb and have not been studied in children, and some brands add caffeine or adaptogens, so treat those versions like an energy drink and read the can.
Does hop water have caffeine?
Most hop waters are caffeine-free. The exceptions are hop teas brewed on black, green or white tea, such as three of Hoplark's HopTea flavors (about 20 to 70 mg per can), and functional versions such as Von Ebert Boost, which lists 70 mg. Caffeinated cans in this directory carry a caffeine badge.
Is hop tea the same thing as hop water?
Not quite. Hop tea is brewed tea (black, green, white, chamomile or hibiscus) that is then hopped and carbonated, so it carries tea tannin and sometimes caffeine. Hop water is just water, hops and bubbles. Hoplark sells both, and they sit side by side on the shelf.
Why is hop water so expensive?
A six-pack runs 9 to 15 dollars because hops are expensive (a pound of Citra costs more than a pound of coffee), the dry-hopping and filtering steps are the same ones used for an IPA, and volumes are still small compared with seltzer. Grocery six-packs from Lagunitas and Sierra Nevada are the cheapest way in.
Is hop water good for you?
It is a zero-calorie, zero-sugar alternative to beer, soda and sweet seltzer, which is the real health case. Hops contain polyphenols and bitter acids, but the amount in a can is small and no health benefit has been proven for hop water itself. It is a better swap than a cure.
Can you get drunk on hop water?
No. With 0.0% alcohol there is nothing to get drunk on, no matter how many you drink. Some people feel a mild calming effect, which is the hops, not alcohol.
How many calories are in hop water?
Almost always zero. Water, hops and carbon dioxide have no calories, and the brands that add citric acid or natural flavor stay at 0. The exceptions are versions with real fruit juice, such as Sierra Nevada's fruit flavors and Partake Hop Twist, which may carry a few calories; check the panel.