The short version
Jetboil Java Kit converts your existing Jetboil Flash into a French press. We researched the press seal and compared it to the GSI Ultralight Java Drip.
Who it's for
Buy this if: Jetboil Flash owners who want real coffee without carrying a separate camp coffee setup.
Skip this if: Non-Jetboil stove users — this is Jetboil-specific.
In practice
French Press vs. Drip vs. Percolator
Camp percolator: $30-50, 10+ oz, rich coffee, sediment risk. French press (Java Kit): $25, 2 oz attachment, full-bodied coffee, minimal sediment if plunger sealed well. GSI Drip: $10, 1 oz, filtered coffee, 6-8 minute brew. For Jetboil owners: Java Kit is the obvious choice.
What we loved
+ Uses existing Jetboil cup — no additional vessel weight+ $25 — lowest cost French press camp coffee solution+ Real coffee in 4 minutes start to finish
What we'd change
– Coffee grounds in the cup bottom if the plunger seal isn't tight– Works only with 1L Jetboil FluxRing cup
Where to buy
Check the current price
Amazon See price →Links are Amazon affiliate links — we earn a commission if you buy, at no extra cost to you. It never changes our score.