What you'll need

Kombucha needs less gear than the internet wants to sell you. This is the same checklist the app walks you through before your first batch — everything on it earns its shelf space. And when you outgrow it, the upgrades are here too, in the order a regular brewer actually feels the need for them.

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The essentials

• A 1-gallon glass jar — your F1 vessel. Wide mouth is easier to clean. Glass only; no metal or plastic for the ferment itself. See options
• A breathable cloth cover + rubber band — 100% cotton fabric (a clean tea towel) or coffee filters work best. Skip cheesecloth: its weave is too loose and fruit flies get through. The culture needs air; fruit flies must not get any. See options
• Pressure-rated ROUND swing-top bottles — for F2 carbonation. Round matters: square bottles have weak corners and can crack under pressure. 16 oz is the friendliest size. See options
• Strong starter tea — at least 2 cups — that liquid is the SCOBY: the living culture itself, and the batch's bodyguard. From a friend, a local brewer, or a reputable seller. A pellicle mat may come with it, but the tea is what matters. See options

Small tools that earn their keep

• Funnel — bottling day without one is a sticky afternoon. See options
• Fine mesh strainer — for flavoring bits and yeast strands at bottling. See options
• pH strips — optional but reassuring: finished kombucha usually lands around 2.5–3.5, and a strip settles arguments your tongue can't. Buy the narrow-range kind, covering roughly 0–6 (or a short-range set like 2.8–4.4): kombucha lives in that little window, and wide-range 1–14 strips step too coarsely to tell a 2.8 from a 3.4. See options
• A stick-on thermometer strip — ferments like 70–80°F; the strip on the jar tells you the truth about your kitchen corner. See options

Leveling up

Brewing on rotation — a batch finishing as the next one starts? These are the upgrades that actually change your week, in roughly the order you'll feel the need for them.

• A bigger vessel — or a continuous brew setup — a 2–4 gallon glass or ceramic dispenser with a plastic or stainless spigot. Draw off a third to a half for bottling, top up with fresh sweet tea, and never wait on a fresh F1 again. (The Continuous Brewing guide covers the rhythm.) See options
• A dedicated SCOBY hotel jar — once your starter is feeding weekly batches, it deserves its own jar instead of borrowing space from the current brew. See options
• A pen-style pH meter — strips got you started; a meter ends the guessing. Get the calibration solution with it, and check your starter at the start (pH 4.5 or lower) and the finish (2.5–3.5). See options
• Temperature control — a heat mat or brew belt with a simple thermostat keeps a cool corner from stalling your winter ferments. This is the heating mat from the skip list — it earns its keep now. See options
• A 1-micron filter setup — for brewers who keg: run the finished batch through it before flavoring and the pour comes out cleaner. See options
• Kegging gear — a corny keg, CO2, and a carbonation stone change bottling day completely: flavor the whole batch, keg it, purge with CO2, chill, and force-carbonate through the stone. It's how a five-gallon week stays fun. See options

None of this is required to make great kombucha — the essentials above already do that. These just make more of it, more often, with less fuss.