Cultures & SCOBYs
Pineapple skin, sugar, water, three days. The fastest way to find out whether home fermenting is for you.
By Scooter M.·Published September 1, 2026
The short answer
Tepache is fermented pineapple: the rind and core of a pineapple, plus sugar and water, left covered at room temperature for two to four days. No culture to buy — the yeast is on the skin. It is the fastest and cheapest home ferment there is.
A traditional Mexican fermented drink, made from the part of the pineapple most people throw away. Wild yeasts on the rind ferment the sugars in the fruit and the added sugar, and in a couple of days you have a lightly fizzy, tart, distinctly pineapple drink.
It is closer to a ginger bug than to kombucha in how it works: wild organisms rather than a maintained culture, a short cycle, and no acid protection built up in advance. What it has that a ginger bug does not is that the result is the drink — you are not making a starter for something else.
Two to four days is the whole ferment, and the window is genuinely short. Leave it much longer at room temperature and it keeps going toward vinegar, then toward something alcoholic and unpleasant. Taste it daily from day two.
| Kombucha | Tepache | |
|---|---|---|
| Culture | Bought, maintained indefinitely | Wild, on the pineapple skin |
| Cycle | 7-14 days plus bottling | 2-4 days |
| Ongoing commitment | A culture to keep alive between batches | None. Each batch is standalone. |
| Cost | Culture, tea, sugar | The part of a pineapple you were discarding |
| Flavor | Sour, tea-forward | Tart, sweet, unmistakably pineapple |
| Repeatability | High. Same culture every time. | Variable. Every pineapple is different. |
The one-line summary: tepache is a project, kombucha is a practice. Tepache asks nothing of you between batches, which is exactly why it is the best way to find out whether you enjoy fermenting anything at all before committing to a culture you have to keep alive.
A gallon jar with a cloth cover, bottles if you want to carbonate it further, and a temperature strip — because a short ferment in a cold kitchen is a very slow ferment.
Fermentaholics
A gallon jar that arrives with the muslin cover, the band and a temperature strip already in the box, which is the whole non-culture half of a first batch.
#ad No live price feed yet, so no number is shown rather than a stale one. How this is funded.
EZ Cap
The only bottle here with a published pressure rating — 100 PSI — in amber glass, which is the combination a second ferment actually asks for.
#ad No live price feed yet, so no number is shown rather than a stale one. How this is funded.
Craft a Brew
A four-inch liquid crystal strip that sticks to the glass and reads the liquid rather than the air, which is the distinction that matters.
#ad No live price feed yet, so no number is shown rather than a stale one. How this is funded.
Kombucha protects itself with acidity carried over from the previous batch. Tepache has no such head start: it begins as sweet water and relies on wild organisms establishing quickly. In practice they do, and tepache has been made this way for a very long time. But it deserves the ordinary short-ferment cautions.
Home fermentation safety covers the general version of all of this.
Straight from the jar, tepache is lightly fizzy. If you want it properly carbonated, strain it into pressure-rated bottles and leave them sealed for a day or two before refrigerating.
Be careful here. Tepache still has plenty of sugar in it and wild yeast is unpredictable, so bottled tepache can build pressure fast. Burp the bottles daily and get them into the fridge as soon as they are fizzy enough.
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Ranked on the published rubric. Every row jumps to that product's full write-up below; the button goes straight to Amazon.
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 | Score7.7 Fermentaholics Printed Gallon Kombucha Glass Jar A gallon jar that arrives with the muslin cover, the band and a temperature strip already in the box, which is the whole non-culture half of a first batch. | A plain jar with the cover sorted | 7.7out of 10 | |
| 2 | Score8.3 EZ Cap Swing Top Bottles, Amber Glass, 16 oz (Case of 12) The only bottle here with a published pressure rating — 100 PSI — in amber glass, which is the combination a second ferment actually asks for. | Second ferment, one serving at a time | 8.3out of 10 | |
| 3 | Score7.4 Craft a Brew Fermometer Adhesive Strip Thermometer A four-inch liquid crystal strip that sticks to the glass and reads the liquid rather than the air, which is the distinction that matters. | Reading the jar, not the room | 7.4out of 10 |
#1 · A plain jar with the cover sorted
A gallon jar that arrives with the muslin cover, the band and a temperature strip already in the box, which is the whole non-culture half of a first batch.
Who it is for. A first-time brewer, or anyone who has learned that the fewer parts a fermentation vessel has, the fewer places a batch can go wrong.
Source: Fermentaholics published jar listing contents, fermentaholics.com/product/printed-gallon-kombucha-glass-jar-2-pack/, retrieved 2026-09-01
Skip it if. You want to draw a sample without opening the jar. A plain jar has to be opened every time you taste it.
#ad No live price feed yet, so no number is shown rather than a stale one. How this is funded.
#2 · Second ferment, one serving at a time
The only bottle here with a published pressure rating — 100 PSI — in amber glass, which is the combination a second ferment actually asks for.
Who it is for. Anyone doing a second ferment who wants a bottle with a number behind it rather than a shape that looks strong.
Source: MoreBeer published EZ Cap product specification (capacity, pressure rating, case contents, crown cap compatibility), morebeer.com/products/ez-cap-swing-top-bottles-amber-glass-16-oz-case-12, fetched 2026-09-01
Skip it if. You want to see the color of the finished drink. Amber hides it; the clear version of the same bottle does not.
#ad No live price feed yet, so no number is shown rather than a stale one. How this is funded.
#3 · Reading the jar, not the room
A four-inch liquid crystal strip that sticks to the glass and reads the liquid rather than the air, which is the distinction that matters.
Who it is for. Every brewer. This is the cheapest way to stop guessing what temperature the batch is at.
Source: Craft a Brew published Fermometer specification (size, display units, compatible surfaces, operating principle), craftabrew.com/products/fermometer-adhesive-strip-thermometer, fetched 2026-09-01. Comparable-strip ranges from retailer listings, cited as comparisons only.
Skip it if. You want a logged, numeric record. A strip is a glance, not a measurement you can write down with confidence.
#ad No live price feed yet, so no number is shown rather than a stale one. How this is funded.
Every specification cited on this page came from one of these documents, retrieved on the date shown against the product it belongs to.
SCOBYs, jun cultures, water kefir grains and ginger bugs — where they come from, how much starter tea you need, and how they differ.
How to build a ginger bug from scratch in about a week, how to feed it, and how it differs from a kombucha culture.
A fortnight against 48 hours, tea against sugar water, a pellicle against grains — compared on published cycle times and ratios.
Which precautions genuinely matter for home drink ferments, which are folklore, and where the honest answer is to ask someone qualified.
Which swing tops publish a pressure rating, which are storage bottles wearing the same shape, and how to tell them apart before you fill them.