Eight single doses. One valve per tube.
One-way CO₂ valve — releases gas out, keeps oxygen out
Freshly roasted coffee beans release CO₂ for several days after roasting — a process called degassing. If you seal beans in an airtight container without a valve, the CO₂ builds up pressure and can force the seal open, exposing beans to oxygen. If you just leave them open, oxygen gets in immediately and oxidation begins. The one-way valve solves both problems: CO₂ exits freely, but the valve is one-directional — oxygen cannot enter. This is the same mechanism used on professional coffee packaging from specialty roasters.
Clear glass + magnetic screw cap — visible, sealed, and funnel-ready
The glass tube body lets you see the beans — roast colour, quantity remaining, and origin at a glance. The cap is a screw-on design with a built-in strong magnet that pulls the cap flush and tight against the tube rim, reinforcing the seal beyond the threads alone. A small stainless steel funnel is included in the set — use it to load beans cleanly without spillage directly into each tube.
Wooden base — solid, non-slip, counter-ready
The solid walnut wood base is reinforced with a stainless steel bracket that holds all 8 tubes in a single-row linear arrangement. Total base dimensions: 19cm wide × 8.9cm deep × 1.5cm tall. The full set weighs 820.5g — substantial enough that it doesn't shift when you pull a tube out. Each tube diameter is 5.6cm, each holds 20–22g of beans.
Gas out only. No entry.
The one-way valve has one job. It does it passively — no batteries, no mechanism to maintain. The physics of pressure differential handles the rest.
Without a valve
Sealed but not fresh
A standard airtight container traps CO₂ inside with the beans. As CO₂ builds up, pressure increases and eventually forces the seal open — letting oxygen in. If you manually open the container to release pressure, you expose the beans to the surrounding air. Either way, oxygen wins. Most standard storage containers have this problem.
With the Gik G80
CO₂ out · oxygen stays out
The one-way valve is a pressure-differential mechanism — it opens when internal CO₂ pressure exceeds external air pressure, releases the gas, and closes again. The valve only allows flow in one direction. When CO₂ pressure drops, the valve closes and the pressure differential between the sealed tube and outside air keeps it shut. Oxygen cannot push through in the opposite direction. The beans degas naturally, the seal stays intact.
Built to last. Built to clean.
All-metal construction, CNC-machined burr seat, and a tool-free assembly that makes cleaning a 30-second job — not a reason to avoid it.
Answered.
What does the one-way valve actually do?
Freshly roasted beans release CO₂ for days after roasting. The one-way valve lets that CO₂ escape without letting oxygen in. Without a valve, CO₂ builds pressure and eventually forces the seal open — letting oxygen in. The one-way valve manages that degassing passively, keeping the seal intact and oxygen blocked the entire time.
Should I get the glass tubes or the metal tubes?
Glass tubes are better for display and sampling — you can see the beans, check colour and roast level, and use them as a counter presentation. Metal tubes are better for freshness and daily use — the one-way valve manages CO₂ degassing and the opaque body blocks UV. If freshness is the priority, metal. If display is the priority, glass. Many setups use both.
Does UV light really affect coffee beans?
Yes — UV exposure accelerates lipid oxidation in coffee beans, producing stale and rancid flavour compounds even when beans are otherwise sealed. Glass tubes on a counter near a window are exposed to UV every time the light is on. The metal body completely blocks UV regardless of where the tubes are placed.
How do I fill the tubes without spilling?
Use a small funnel or your Gik Dosing Ring as a guide. The tube opening is wide enough for whole beans with a steady hand, but a funnel makes it clean and fast. Weigh your dose before loading the tube so each tube holds exactly one or two doses — no guesswork at brew time.
Can I see the beans inside each tube?
Yes — the tube body is clear glass. You can see the beans, check colour, roast level, and how much is remaining without opening the tube. The one-way valve cap sits on top — the valve mechanism is in the cap, not the glass body. All the freshness protection, full visibility.
Is there Philippine after-sales support?
Yes — available on gikcoffeelab.com, and Shopee with full Philippine-based after-sales support. Contact us at gikcoffeelab@gmail.com.