Independent buying guides for home fermentation

Best Kombucha Flavoring Kits

Updated How we research

Our top pick

Kombucha.com Tropical Breeze Brew Booster - Pineapple, Mango and Papaya Blend with Botanicals, 8 Ounce

Kombucha.com's Tropical Breeze brew booster, an 8 Ounce pineapple, mango and papaya blend with botanicals.

Our score8.0/10

Best budget

Kombucha.com Wildberry Marmalade Brew Booster - Elderberry, Currant and Strawberry Blend with Hibiscus, 8 Ounce

Kombucha.com's Wildberry Marmalade brew booster, an 8 Ounce elderberry, currant and strawberry blend with hibiscus.

Our score8.0/10

Second fermentation is where kombucha picks up its flavor and most of its fizz, and a flavoring kit saves you sourcing fruit and spices one at a time. Kits differ in whether they use dried fruit, purees, syrups, or teas, how much sugar each addition carries, and how many bottles a pack actually flavors. Ingredient quality varies widely, and cheap syrups can flatten the tartness you fermented for. We looked at ingredient lists, added sugar, and whether portions match a standard bottling batch, plus how well each blend suits a second ferment rather than a cordial. Dried fruit and whole spice kits suit anyone who wants control and clean flavor. Syrup packs are convenient for quick bottling days. Loose additions strain out easily, while fine powders will cloud every bottle you fill.

The short version

We compared 8 picks. Our scores range from 7.0 to 8.0 out of 10.

Scores are our editorial assessment, not customer ratings. How we score

  1. 1.Kombucha.com Tropical Breeze Brew Booster - Pineapple, Mango and Papaya Blend with Botanicals, 8 Ounce
    8.0/10See on AmazonCheck price
  2. 2.Kombucha.com Wildberry Marmalade Brew Booster - Elderberry, Currant and Strawberry Blend with Hibiscus, 8 Ounce
    8.0/10See on AmazonCheck price
  3. 3.Kombucha.com Equatorial Energy Elixir Brew Booster - Premium Botanical Kombucha Flavoring Blend, 8 Ounce
    7.8/10See on AmazonCheck price
  4. 4.Kombucha.com Forest Berry Bloom Brew Booster - Elderberry, Currant and Blueberry Blend with Hibiscus, 4 Ounce
    7.8/10See on AmazonCheck price
  5. 5.Kombucha.com Pure Passion Colada Brew Booster - Passionfruit Coconut Blend with Botanicals, 4 Ounce
    7.5/10See on AmazonCheck price
  6. 6.Kombucha.com Redberry Ambrosia BREW BOOSTER - Super Premium Strawberry Raspberry Blend w/ Hibiscus & Botanicals for Creating Store Quality Kombucha, Flavored Iced Tea, Sangria, and More - All Natural, Loose Leaf, Caffeine Free, No Artificial Flavors, Immunity Boosting (8 ounce)
    7.4/10See on AmazonCheck price
  7. 7.Kombucha.com Orange Blossom Lemon Drop Brew Booster - Premium Botanical Flavor Enhancer, 4 Ounce
    7.2/10See on AmazonCheck price
  8. 8.All Star Extracts Kombucha Flavoring - Natural Orange
    7.0/10See on AmazonCheck price
Tick up to 3 picks to compare them side by side.
Kombucha.com Tropical Breeze Brew Booster - Pineapple, Mango and Papaya Blend with Botanicals, 8 Ounce#1
See on Amazon

Kombucha.com's Tropical Breeze brew booster, an 8 Ounce pineapple, mango and papaya blend with botanicals.

Fit for the job 8/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10

  • + Pineapple, mango and papaya create a bright tropical second ferment
  • + 8 Ounce size gives better value for regular bottling than smaller pouches
  • + Dried tropical fruit avoids peeling and chopping on bottling day
  • - Dried fruit pieces can clog narrow bottle necks without a funnel
  • - Sweet tropical blend can push carbonation high, so burp bottles
Kombucha.com Wildberry Marmalade Brew Booster - Elderberry, Currant and Strawberry Blend with Hibiscus, 8 Ounce#2
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Kombucha.com's Wildberry Marmalade brew booster, an 8 Ounce elderberry, currant and strawberry blend with hibiscus.

Fit for the job 8/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10

  • + Elderberry, currant and strawberry build a jammy, fruit-forward flavor
  • + 8 Ounce pouch keeps a busy bottling schedule stocked longer
  • + Hibiscus gives the finished kombucha a vivid red color
  • - Jammy berry profile may be too sweet for fans of dry kombucha
  • - Berry pieces and hibiscus need straining before serving
Kombucha.com Equatorial Energy Elixir Brew Booster - Premium Botanical Kombucha Flavoring Blend, 8 Ounce#3
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Kombucha.com's Equatorial Energy Elixir brew booster, an 8 Ounce premium botanical flavoring blend for kombucha.

Fit for the job 8/10 · Features and specs 7/10 · Build and materials 8/10 · Value 8/10

  • + 8 Ounce pouch flavors many second fermentations before running out
  • + Botanical blend adds layered flavor without prepping fresh fruit
  • + Brew booster format is made to steep straight into bottles or a jar
  • - Energy Elixir name does not detail the botanicals, so check the ingredients
  • - Dry botanicals need straining before serving to avoid bits in the glass
Kombucha.com Forest Berry Bloom Brew Booster - Elderberry, Currant and Blueberry Blend with Hibiscus, 4 Ounce#4
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Kombucha.com's Forest Berry Bloom brew booster, a 4 Ounce elderberry, currant and blueberry blend with hibiscus.

Fit for the job 8/10 · Features and specs 8/10 · Build and materials 8/10 · Value 7/10

  • + Elderberry, currant and blueberry give a deep berry flavor to second ferments
  • + Hibiscus adds a tart edge and turns kombucha a rich red color
  • + Dried fruit blend is shelf-stable and easy to portion into bottles
  • - 4 Ounce size flavors fewer batches than the larger pouches
  • - Hibiscus tartness may overpower mild kombucha if you use too much
Kombucha.com Pure Passion Colada Brew Booster - Passionfruit Coconut Blend with Botanicals, 4 Ounce#5
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Kombucha.com's Pure Passion Colada brew booster, a 4 Ounce passionfruit coconut blend with botanicals for kombucha.

Fit for the job 7/10 · Features and specs 8/10 · Build and materials 8/10 · Value 7/10

  • + Passionfruit and coconut give kombucha a tropical, dessert-like profile
  • + Botanical blend is portioned by the spoon, so batches taste consistent
  • + Shelf-stable pouch skips the waste of buying fresh tropical fruit
  • - Coconut pieces can leave oily bits that need careful straining
  • - Sweet colada flavor may not suit fans of dry, tart kombucha
Kombucha.com Redberry Ambrosia BREW BOOSTER - Super Premium Strawberry Raspberry Blend w/ Hibiscus & Botanicals for Creating Store Quality Kombucha, Flavored Iced Tea, Sangria, and More - All Natural, Loose Leaf, Caffeine Free, No Artificial Flavors, Immunity Boosting (8 ounce)#6
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Kombucha.com Redberry Ambrosia Brew Booster from Raw Brewing Company, a strawberry and raspberry blend with hibiscus and botanicals. Added after primary fermentation to flavor kombucha, iced tea or sangria.

Fit for the job 8/10 · Features and specs 7/10 · Build and materials 7/10 · Value 7/10

  • + Strawberry raspberry blend with hibiscus and botanicals, a berry profile that stands apart from the citrus and tropical boosters
  • + Listing says it is added after primary fermentation, so it fits a standard second-flavoring step
  • + Same product line as the other Brew Boosters in this guide, with the listing also pointing to use in iced tea and sangria
  • - The listing gives no pack weight or number of batches in the text we have, so cost per batch is unclear
  • - Flavor strength is not described, so you may need to adjust the amount to taste
Kombucha.com Orange Blossom Lemon Drop Brew Booster - Premium Botanical Flavor Enhancer, 4 Ounce#7
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Kombucha.com's Orange Blossom Lemon Drop brew booster, a 4 Ounce premium botanical flavor enhancer for kombucha.

Fit for the job 7/10 · Features and specs 7/10 · Build and materials 8/10 · Value 7/10

  • + Citrus and floral notes give kombucha a light, refreshing profile
  • + Botanical enhancer brightens plain brews without adding juice
  • + Premium blend suits brewers who like subtle rather than sugary flavors
  • - Orange blossom florals can taste soapy to some if overused
  • - 4 Ounce pouch covers fewer bottles than the larger booster sizes
All Star Extracts Kombucha Flavoring - Natural Orange#8
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All Star Extracts' natural orange kombucha flavoring, a liquid extract for fast, consistent orange flavor in bottles.

Fit for the job 7/10 · Features and specs 6/10 · Build and materials 7/10 · Value 8/10

  • + Liquid extract mixes in instantly with no straining needed
  • + Natural Orange flavor stays consistent from batch to batch
  • + Just a few drops per bottle make it quick on bottling day
  • - Extract adds no fruit sugar, so it gives less carbonation than real fruit
  • - Single flavor bottle offers less variety than blended boosters

Before you buy: trade-offs we flagged

No pick is perfect. These are the main compromises we noted for the top products in this guide, so you can check they will not matter for you.

Frequently asked questions

›What is the best choice among kombucha flavoring kits?

Kombucha.com Tropical Breeze Brew Booster - Pineapple, Mango and Papaya Blend with Botanicals, 8 Ounce is our top overall pick. Kombucha.com's Tropical Breeze brew booster, an 8 Ounce pineapple, mango and papaya blend with botanicals. It earns our score of 8.0/10, based on fit for the job, features, build and value.

›What is a good budget option?

Kombucha.com Wildberry Marmalade Brew Booster - Elderberry, Currant and Strawberry Blend with Hibiscus, 8 Ounce is the strongest low-cost pick in this guide. Kombucha.com's Wildberry Marmalade brew booster, an 8 Ounce elderberry, currant and strawberry blend with hibiscus.

›How much should I expect to spend?

Picks in this guide span See on Amazon price bands (roughly: $ = under $30, $$ = $30 to $100, $$$ = over $100). We never display exact prices because they change constantly, so the buttons above always show Amazon's current price.

›How were these products chosen?

We shortlist products that fit the job this guide solves and compare their published specifications, such as size, capacity, materials and what is included. Each pick gets an editorial score out of 10 for fit, features, build and value, and we write the pros and cons from those details. Our score is not an Amazon customer rating. We earn a commission if you buy through our links, which never affects the ranking.

Ferment Nest independently selects every product; we may earn a commission from links above.

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