RIGSTNE RS-EC 4L Electric Kitchen Composter

Kitchen: The RIGSTNE RS-EC is a 4-liter countertop electric composter with drying and grinding, a carbon filter, and an auto-clean mode. Its listing describes separate grinding and ferment modes, so the intended output and cycle time depend on the selected mode.

At a glance

The manufacturer describes a drying, grinding, and cooling process that reduces waste volume by up to 90%.
A carbon filter is said to have a 1500-hour usage limit, with an alert to replace it.
The listing claims operation below 40 dB and automatically adjusted working time based on the amount of waste.
The inner bucket is described as nonstick and dishwasher-safe when empty.

Price

$191.99Save 20%

Reference price: ~~$239.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

At 4 liters, the stated capacity offers room for countertop batches of kitchen scraps.
Separate grinding and ferment modes let buyers choose between a faster dry-and-grind process and longer fermentation, according to the listing.
An auto-clean function and a stated filter-life alert may simplify routine upkeep.

Technical specifications

11 specifications

Identity
Brand	RIGSTNE
Model	RS-EC

Capacity and construction
Capacity	4 liters
Form factor	Square
Dimensions listed	10.4"L x 13.3"W x 12.8"H
Weight listed	7.15 kg
Material listed	Aluminum
Color	White

Modes and operation
Grinding mode processing time	3-7.5 Hours
Ferment mode processing time	12-17 Hours
Auto-cleaning mode processing time	0.5 Hours

What to know before buying

Listing details to confirm

The listing gives different timing and output descriptions: a headline claims transformation in 3 hours, a feature says 3 to 8 hours, and the mode details specify 3-7.5 Hours for grinding versus 12-17 Hours for fermenting. Confirm which mode and result match your needs. Waste reduction, noise, odor control, and automatic timing are manufacturer claims, not independently verified measurements.

What’s in the box

Included

Lid

Who is it for?

A good fit for

Households seeking a compact electric appliance for drying and grinding food scraps on a countertop.
Buyers who value an automatic cleaning mode and a carbon-filter odor-control system.

Less suited to

Anyone expecting the faster grinding cycle to produce the same result as the longer ferment mode.
Buyers who need independently established performance, odor, or noise measurements.

RIGSTNE RS-EC 4L Electric Kitchen Composter · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 4 ratings

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The supplied rating data is wholly five-star, but the sample is only a few ratings and no written customer feedback is available. It offers little basis for judging practical concerns such as cycle timing, odor control, noise, or cleaning, so weigh those manufacturer claims against the listed modes and upkeep details.

Frequently asked questions

How long does a cycle take?

The listing gives 3-7.5 Hours for grinding mode, 12-17 Hours for ferment mode, and 0.5 Hours for auto-cleaning. It also makes a separate 3-hour claim, so confirm the desired mode and timing.

Does it produce finished compost?

The listing describes grinding as producing dried, reduced-volume waste and ferment mode as producing semi-composted material. It does not establish that the faster grinding cycle produces finished compost.

How is odor managed?

The manufacturer says an activated carbon filter absorbs odors and that the unit alerts users after the filter reaches its 1500 hours usage limit.

Can the bucket go in a dishwasher?

The listing says the empty bucket can be put in a dishwasher after daily use. It also describes an auto-clean mode.