Half coffee maker, half chemistry set. A siphon (vacuum pot) uses vapor pressure and a gentle simmer to brew an exceptionally clean, aromatic, full-flavored cup — and it's mesmerizing to watch.
Quick steer — Love the ritual and want a clean, tea-like, aromatic cup with a show? Siphon is for you. It's the most involved everyday method — not a grab-and-go.
5 products researched · Updated June 2026 · How we score
The benchmark glass siphon — a clean, aromatic, tea-like cup and a brewing show that draws a crowd.
Hario's Technica is the siphon most people start with: heat-resistant glass, an alcohol burner, and a cloth filter that yields an exceptionally clean, articulate cup. It's involved and theatrical — the brewer you make when you want to show off.
Classic siphons use an alcohol or butane burner, which is inexpensive and portable but slower and a little finicky to regulate. A halogen beam heater is precise and dramatic to watch but adds real cost. Electric models like the Bodum ePEBO automate the whole vapor-pressure cycle and remove the flame entirely, heating the water and drawing the brew back down on their own. Beginners do best with the automated electric route or a stable butane burner; the alcohol lamp is the most traditional but the hardest to dial in.
It's a clean, bright cup
A siphon combines full immersion with a filter, and the result is a distinctively clean, aromatic, tea-like cup with more clarity than a French press and more body than a pour-over. The gentle simmer and even immersion pull out delicate aromatics that other methods lose. Expect an articulate, layered coffee that flatters light and medium roasts — and a brewer you'll genuinely want guests to watch.
Filter type shapes the cup and the cleanup
Siphons take a cloth, glass, or metal filter, and the choice is a real trade-off. Cloth gives the cleanest, silkiest cup but has to be rinsed, kept wet in the fridge between uses, and replaced periodically or it sours. Glass rod filters and reusable metal discs need no upkeep and never sour, but let through a touch more body and fine sediment. Cloth for the purest cup if you'll maintain it; glass or metal for the lowest fuss.
Size and material
Siphons are sold by the cup, typically 3 to 5 small cups, and like most immersion brewers they work best brewed near capacity rather than half-full. The globes are borosilicate glass — heat-resistant but breakable, so handle the seals and stand carefully and keep spare seals and a spare lower bulb on hand. A 3-cup suits one or two drinkers; a 5-cup covers a small group but is overkill for a solo cup.
Know what you're signing up for
This is the most involved everyday method on the site — there's assembly, a heat source to manage, a filter to prep, and glassware to clean, all for one round of coffee. That ritual is the entire point for people who love it, but it's not a grab-and-go. If you want café-quality coffee with less ceremony, a pour-over or a good drip maker gets you most of the way. Buy a siphon because you want the process and the show, not just the cup.
If you value ritual and a distinctive cup, yes; if you want speed, no. A siphon makes an exceptionally clean, aromatic, tea-like coffee that many people find hard to get any other way, and the brewing itself is genuinely mesmerizing to watch. The trade-off is effort: assembly, a heat source, a filter to maintain, and fragile glass to clean, all for a single brew. It's a wonderful weekend-and-guests method and a poor choice for a rushed weekday morning.
How does a siphon brewer work?
It's driven by vapor pressure. You heat water in the lower glass globe; as it warms, the expanding vapor pushes the water up a tube into the upper chamber, where it mixes with the coffee grounds and steeps by full immersion. When you remove the heat, the lower globe cools and the pressure drops, creating a partial vacuum that pulls the brewed coffee back down through the filter, leaving the spent grounds above. The clean coffee collects in the lower globe ready to pour — hence the name vacuum pot.
Is siphon coffee hard to make?
It's more involved than most methods but not truly difficult once you've done it a few times. The variables to manage are grind (medium, similar to drip), your immersion time, and the heat — and an automated electric model like the Bodum ePEBO handles the heat and timing for you, which flattens the learning curve a lot. The fussier parts are really the assembly, keeping the seal seated, prepping a cloth filter, and cleaning fragile glass. Expect a couple of practice brews to get a feel for it, then it becomes a reliable ritual.
What grind and ratio should I use for a siphon?
A medium grind, roughly the same as drip coffee — finer than French press, coarser than espresso. Too fine can clog the filter and over-extract; too coarse brews weak and sour. A good starting ratio is around 1:15 coffee to water by weight, adjusting to taste, with a total immersion time of about 60 to 90 seconds once the water has risen. Stir gently to wet all the grounds evenly, and use a scale rather than eyeballing it — siphon brewing rewards consistency.
What kind of filter does a siphon use?
Most siphons come with a cloth filter, and many owners also buy reusable glass or metal filters. Cloth produces the cleanest, silkiest cup but must be rinsed after each use, stored wet in the fridge so it doesn't dry out and taint the next brew, and replaced every so often before it sours. Glass rod and metal disc filters need no maintenance and never spoil, at the cost of letting a little more body and fine sediment through. Pick cloth for the purest cup if you'll maintain it, glass or metal for convenience.