Buy the pair every brew day needs: Five Star PBW Liquid (or similar alkaline/oxygen cleaner) to lift soil, then Five Star Star San for no-rinse acid sanitize on clean gear. Skip “just sanitize” shortcuts on dirty buckets—and don’t treat bleach as the default unless you’ll rinse obsessively.
More batches die from dirty gear than from a cheap kettle. If you’re stocking a first kit, see the beginner starter kit guide.
Clean first, then sanitize
Alkaline / oxygen cleaners (PBW-style) — Soak kettles, fermenters, and kegs to lift proteins, hop resins, and beerstone precursors. Hot water helps; abrasive pads on soft plastic create scratches that harbor soil forever—especially on fermenting buckets.
Acid no-rinse sanitizers — Final step on visibly clean gear. Mix to the labeled concentration (often ~1 oz per 5 gallons for Star San–style products—follow your bottle). Soft water works better; very hard water can leave the mix less effective and more foamy than you want.
Contact time — If the label says 30–60 seconds of wet contact, that means wet contact. Dunking a hose for three seconds and calling it done is how infections sneak into tubing.
Bleach still works with careful dilution and rinsing. Most homebrewers stop using it because chlorine smell and rinse anxiety aren’t worth the savings.
Foam, bottles, and kegs
Over-concentrated acid sanitizer foams aggressively. That’s usually harmless in a fermenter, annoying when every bottle is a soap opera, and a pain inside kegs if you’re chasing clear sight glasses. Mix accurately; don’t “add a little extra for luck.”
Keep a spray bottle of mixed sanitizer for lids, airlocks, and anything you touch mid-transfer. Dump and remake the bucket mix when it goes cloudy or you’ve dragged a lot of soil into it.
After sanitation is boring
Once cleaning and sanitizing are automatic, the next quality levers are usually temperature control and a fermenter you trust. When you move off bottles, the same no-rinse habits apply to kegging gear—posts and poppets are easy to forget.
More gear context: brewing guides.