Realcook 8" Cold Smoke Generator, Stainless Steel Cold Smoker Tray, 7-8 Hrs Review (2026)

Who this cold smoker fits

This is a passive smoke generator for people who already own a gas grill, pellet grill, charcoal kettle or dedicated smoker and want to cold-smoke foods like cheese, salmon or bacon without running the main heat source. It is not a smoker on its own; it is an accessory tray that sits inside whatever grill you already have and smolders sawdust or pellets to produce smoke while keeping temperatures low. Because it needs no electricity, it works anywhere you can set a tray, including inside a kettle grill with the lid mostly closed. Anyone wanting hot smoking for ribs or brisket should look elsewhere, since this tray is built around low, slow, low-temperature smoke rather than cooking heat.

How the maze design works

The tray is stainless steel and uses a round spiral or maze pattern that you fill with wood sawdust or fine pellets, then light at one end so the smolder travels the maze path over several hours instead of burning all at once. Realcook rates this 8-inch model for 7 to 8 hours of smoke per fill, and two handles on the sides make it easy to lift in and out of a grill while lit. At roughly 8 inches across, it is compact enough to fit inside kettle grills, cabinet smokers, and most gas or pellet grill fireboxes without taking up cooking space on the grates. There is no fan, pump, or lid included, so airflow to keep the smolder going has to come from the host grill's vents or a cracked lid.

Using it for cold smoking

Fill the maze with dry sawdust or pellets, pack it lightly so the smolder does not jump gaps, and light one end with a torch or lighter until it glows before blowing it out to let it smolder rather than flame. Because there is no built-in heat source, the food chamber around it stays close to ambient temperature, which is the point for cheese, salted salmon or bacon that would melt or cook if heated. Owners generally place the tray at the opposite end of the grill from the food and leave a vent cracked so oxygen keeps the smolder alive. Cleanup is straightforward since it is just stainless steel and ash, and the tray can be reused indefinitely as long as the maze channel is kept fully dry between smokes.

Trade-offs against powered options

Compared with the GARLLEN Cold Smoke Generator, which is rated for a longer 5 to 20 hour range depending on fill, the Realcook's 7 to 8 hour window is shorter and better suited to a single overnight or half-day cold smoke rather than multi-day cures. Against the Cold Smoke Generator with Lid and Air Pump models, which add a powered pump to force air through the maze and keep the smolder alive in low-airflow setups, this Realcook tray has no pump or lid, so a poorly ventilated grill can let the smolder go out partway through, wasting fuel and interrupting the smoke. The upside is a lower price and total simplicity: no batteries, no motor to fail, nothing to charge before a smoke session.

Verdict: who should pick a different tray

Choose this tray if you want an affordable, no-power way to add real cold smoke to cheese, fish or bacon in a grill you already own, and you are willing to check on it periodically to make sure airflow keeps it lit. Pick a pump-assisted or lidded generator instead if your grill has poor natural ventilation or you want a smoker you can walk away from for a full day unattended. It is also not the right tool if you want hot smoking or full cooking heat, since this tray is designed to add flavor without raising temperature. For the price and the simplicity of dropping it into an existing setup, it does the core job well.

Frequently asked questions