Our take
The Hamilton Beach 70579 Big Mouth Duo combines a 14-cup main bowl with a separate 5-cup bowl. Hamilton Beach describes the bowls as nesting for storage and lists a reversible slicing/shredding disc, chopping blade, three speeds plus pulse, and a 525-watt motor. That gives the model a clear two-bowl role without relying on a marketplace title. The manufacturer page marks it no longer available, so the review describes the documented model configuration and makes no current stock claim.
For someone seeking a full-size bowl with a genuinely smaller second work bowl and standard disc processing..
It is not for shoppers seeking a compact single-bowl chopper, a dicing kit, a spiralizer, or a verified current Amazon offer tied to the historical ASIN.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The manufacturer lists a 14-cup main bowl and a distinct 5-cup second work bowl.
- The two bowls nest, and the page lists a reversible slicing/shredding disc.
- Three speeds plus pulse and a 525-watt motor are documented by the manufacturer.
What to weigh up
- A 14-cup processor and a second bowl require substantial cabinet and counter planning.
- The official page labels model 70579 no longer available.
- No dicing kit, spiralizer, dough blade, or current historical-ASIN crosswalk is documented.
The key details
| Model covered | 70579 |
|---|---|
| Main bowl capacity | 14-cup main bowl for large batches. |
| Small-batch bowl | Separate 5-cup work bowl; bowls nest for storage. |
| Slicing and shredding | Reversible slicing/shredding disc and chopping blade. |
| Special attachment | No dicing or spiralizing kit is listed. |
| Dough blade | 525-W motor; three speeds plus pulse. |
Performance figures are manufacturer claims. Source checked October 5, 2026. Regional models and included accessories can differ.
What the features mean for you
The two bowl sizes are the defining feature
Hamilton Beach lists a 14-cup primary bowl and an additional 5-cup bowl for the 70579. This is a meaningful large-and-small pairing: the smaller vessel is sized for a separate preparation rather than being another nearly full-size container. The company says the bowls nest for compact storage, which helps explain the Duo name, although buyers still need space for the base, lid, blades, and discs. The matching profile uses the stated 14-cup main capacity and marks the separate 5-cup bowl as present. [bowlCapacityCups, smallBowl]
Standard disc and blade tasks are documented
The official page lists a reversible slicing/shredding disc and a chopping blade. That supports conventional vegetable cutting and bowl processing, giving the 70579 a broader role than a blade-only chopper. The source does not list a dedicated dicing grid, spiralizer, or dough blade, so those specialty requests should point elsewhere. A reversible disc is a useful match attribute, but the published parts list is not evidence of cut uniformity or hands-on performance. [sliceShred]
Controls and power are manufacturer-listed
Hamilton Beach states a 525-watt motor, three speeds, and pulse. These are model-page specifications, not a comparative guarantee that this processor is faster or stronger than a different machine. The speed choices can matter to shoppers who want more than a single pulse setting, but the available source does not document a separate dough blade or specialized cutting assembly. We keep the review focused on the stated configuration and do not add performance claims that would require testing. [doughBlade]
The Big Mouth feed tube changes prep steps
The manufacturer describes the Big Mouth feed tube as fitting whole foods and reducing the need to pre-cut. That is relevant for produce preparation, but the page does not provide an opening dimension in the saved specification used here. We do not turn the marketing phrase into a claim that every ingredient can go in whole. A buyer who relies on a particular carrot, potato, or cheese block should verify the opening and pusher dimensions in the owner guide or seller package. [sliceShred]
Treat availability as a separate question
Hamilton Beach labels model 70579 no longer available on its official page. That is a maker status statement from the inspected page, not a claim about every reseller or a prediction that no used unit exists. The frozen Amazon ASIN has not been linked to a current exact offer, so the destination is a tagged search for model 70579. Check that the bowls and reversible disc are actually included, and verify the full model code before buying. No current price, stock, or condition is represented. [smallBowl]
What else to compare
The KitchenAid KFPW760OB also pairs a full-size bowl with a smaller bowl and additional tools; Hamilton Beach 70740 is an 8-cup single-bowl alternative.
Before you buy
How large are the two work bowls?
Hamilton Beach lists a 14-cup main bowl and a separate 5-cup bowl for the 70579.
Does the 70579 include slicing and shredding tools?
The official page lists a reversible slicing/shredding disc and a chopping blade.
Is the 70579 currently available from Hamilton Beach?
The inspected manufacturer page labels model 70579 no longer available; this is not a reseller stock statement.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Hamilton Beach 70579 product page ↗ — checked October 5, 2026.
- Hamilton Beach exact-model page: 14- and 5-cup bowls, nesting, 525 W, controls, feed tube, blade/disc set, and availability label ↗ — checked October 5, 2026.
The decision
Choose the 70579 for its documented 14- and 5-cup bowls and standard disc tools, while verifying the seller's exact model and package.
Is it the right fit?
Check the exact model and today’s offers on Amazon.