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Siphon — The Vapor Spectacle

Vacuum brewing · 1840s · The most theatrical method

Siphon (or vacuum brewer) was invented in the 1840s by Loeff of Berlin and refined by Yabram. Two glass chambers connected by a tube. Heat creates vapor pressure, water rises into the upper chamber, mixes with coffee, then — once heat is removed — vacuum pulls brewed coffee back down through a filter. The most visually spectacular brewing method in coffee.

Classic recipe

• 25g medium ground coffee (slightly coarser than espresso)
• 350ml filtered water
• Siphon brewer (Hario, Yama, or Bodum)
• Heat source — alcohol burner, butane, or halogen lamp
• Cloth or paper filter

Steps (5–7 minutes total)

1. 0:00 — Pour 350ml hot water (already warmed to 60°C) in lower chamber
2. 0:30 — Insert filter and upper chamber, place on heat
3. 2:30 — Water rises into upper chamber, add coffee, stir gently
4. 3:30 — Let bloom 60s, stir again
5. 4:30 — Remove from heat — vacuum pulls brew back down through filter
6. 5:30 — Pour and serve immediately

Why Siphon

• Theatrical — the most spectacular brewing method, looks like chemistry
• Clean cup — cloth/paper filter produces clarity
• Full flavor extraction — immersion + vapor agitation = complete extraction
• Conversation starter — if you have guests, this is the brewer they'll remember

When to choose Siphon

Siphon is ideal when you want experience over efficiency. Best for showcase brewing for guests, or for those who love the ritual. Works with any coffee but shines with complex, delicate origins: Ethiopia Yirgacheffe, Panama Geisha. Not for daily use — too time-consuming.

Common mistakes

• Cold water start — takes too long, water boils before reaching upper chamber; pre-heat water to 60°C
• Forgetting to pre-wet the filter — cloth filters need pre-soaking; paper filters need rinsing
• Stirring too aggressively — gentle figure-8 stir, not whipping
• Using too fine grind — clogs the filter; medium grind is correct

See also

• Hario Syphon Technica
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