KOIOS Food Processor
- Food Processor
- 8.5 cups
- 500 watts
- Corded electric
- Better rated than 71%
- More reviewed than 78%
A well-regarded, two-bowl processor that handles everyday chopping and pureeing with minimal fuss, provided you keep the top motor housing clean.
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How it ranks among the 49 food processors we track
4.6★ across 1,224 Amazon ratings, Bayesian-smoothed toward the category average.
1,224 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
500+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 49 food processors we track - how the scorecard works · full food processors data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 15, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The KOIOS AMJ-301 is a 500W food processor that ships with two 8-cup bowls, one stainless steel and one glass, plus two bi-level blade sets, aimed at chopping, mincing, pureeing and grinding rather than dough or heavy commercial work.
- 500W motor with S-shaped bi-level blades
- Two 8-cup bowls, glass and stainless steel, dishwasher safe
- Two speed settings plus pulse control
- Overheat protection with automatic shutoff
Who it's for
Suits home cooks who batch-process different ingredients, want dishwasher-safe bowls and blades, or make purees, nut butters or minced meat regularly. Less suited to anyone who wants a single oversized bowl for one large batch at a time.
What buyers say
From Amazon customer reviews.
Owners describe it handling a wide range of jobs well, including making peanut butter, pureeing vegetables into soup, mincing several pounds of beef in about a minute, and making homemade dog food. Several compare it favorably to previous processors on power and the convenience of two bowls. The recurring caution, raised by more than one reviewer, is that the top-mounted motor housing needs regular cleaning to keep performing well, a trait shared with other top-mount processor designs.
Strengths and trade-offs
Drawn from this product's published specifications.
- Two 8-cup bowls, glass and stainless steel, dishwasher safe
- Handles nut butter, purees, baby food and minced meat
- Bowls nest together to save counter and storage space
- Hidden safety switch and overheat protection
- Top motor housing needs regular cleaning
- Dried-on food is harder to clean
Specifications
| Brand | Koios |
|---|---|
| Model | AMJ-301 |
| Dimensions & fit | |
| Item Weight | 4.5 pounds |
| Item Dimensions D x W x H | 8.7 × 7.5 × 10.4 inches |
| Capacity & performance | |
| Bowl Capacity | 8.5 cups |
| Number of Speeds | 2 |
| Power & efficiency | |
| Wattage | 500 watts |
| Power Source | Corded electric |
| Voltage | 120 volts |
| Construction & materials | |
| Material | Glass, Stainless Steel |
| Blade Material | Stainless Steel |
| Color | Black |
| Included components | |
| Included Components | Lid |
| Other details | |
| Is the item dishwasher safe | Yes |
| Recommended Uses For Product | Blend |
| Part Number | AMJ-301 |
| Product Care Instructions | Dishwasher Safe |
| Special Features | Auto Shut Off, Removable Parts, Reversible Blade, Safety Lock, food processor |
| Item Type Name | food processor |
How it compares
This product against the closest alternatives we track in food processors.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| KOIOS Food ProcessorThis product | 4.6 / 5 | 1,224 | 4.2 / 5 |
| Toastmaster TM-61MC 1.5 Cup One-Touch Mini Food ChopperToastmaster | 4.4 / 5 | 1,500 | 4.3 / 5 |
| Ninja BN601 Professional Plus Food Processor 1000-Peak-Watts with Auto-iQ Preset Programs…Amazon Renewed | 4.6 / 5 | 571 | 4.3 / 5 |
| Cuisinart Food ProcessorCuisinart | 4.6 / 5 | 22,203 | 4.2 / 5 |
| Hamilton Beach Food Processor & Vegetable Chopper for SlicingHamilton Beach | 4.5 / 5 | 18,300 | 4.2 / 5 |
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Questions about the Koios AMJ-301
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the KOIOS AMJ-301 come with more than one bowl?
Yes, it includes two 8-cup bowls, one glass and one stainless steel, each with its own blade set.
Can it puree cooked vegetables into soup?
Reviewers report it turning boiled vegetables into a smooth puree in under 20 seconds.
What is the main maintenance issue owners mention?
Keeping the top motor housing clean, since it is a recurring weak point shared with other top-mount processor designs.