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BLACK+DECKER FP4200BC review

An 8-cup, 450-watt processor with an S-blade, a reversible slice-shred disc and low, high and pulse.

The net of it Eight cups, 450 watts and a reversible slice-and-shred disc for thirty-seven dollars — the cheapest real food processor on this shelf by fifteen dollars. Its one published idea is that the lid does the locking, which is the part everybody else fights with.

What the maker puts in writing

  • “EASY ASSEMBLY: The smart design lets you set the work bowl onto the base, and uses the lid as the locking mechanism. No more struggling to lock the bowl into place.”
  • “8-CUP WORK BOWL: The large capacity gives you plenty of room… creating salsas, nut butter, hummus, and so much more.”
  • “STAINLESS STEEL S-BLADE: The stainless steel blade quickly chops and mixes for fast, consistent results.”
  • “REVERSIBLE SLICE/SHRED DISC: The reversible metal disc lets you slice veggies quickly or shred cheese without tiring your forearms.”
  • “EASY-CLEAN TOUCHPAD CONTROLS: …low, high, and pulse settings. The powerful 450W motor takes care of food quickly and easily.”
  • Description: “Choose from two speeds and a pulse setting… all removable parts are dishwasher-safe”
  • Reference FP4200BC · Catalog: 226 × 221 × 386 mm (8.90 × 8.70 × 15.2 in)

The cheapest machine here that can actually slice

This has a chute and a disc. At least five of the thirteen machines on this shelf do not.

An S-blade and a slicing disc do different things. An S-blade spins in the bottom of the bowl and cuts whatever enters its band: the result is chopped, with pieces of varying size, and it cannot make a slice of anything. A disc sits at the top of the bowl and food is pushed onto it down a chute, so every piece meets the blade at the same angle — slices or shreds of uniform thickness.

That is the difference between chopped cucumber and sliced cucumber, between crumbled cheese and grated cheese.

The five choppers: BLACK+DECKER HC150B at $14.44 (1.5 cups), Cuisinart at $39.95 (3), KitchenAid at $54.99 (3.5), Ganiza at $55.99 (two 8-cup bowls), Sangcon at $49.99 (a blender combo). And “food processor” appears in eight of the nine titles on this shelf.

The four that slice: this, the Ninja at $109.99, and the two Hamilton Beach machines at $52.95 and $69.99.

This is the cheapest of the four by fifteen dollars.

And “reversible” is worth reading carefully. It is one disc with two faces — slice on one side, shred on the other — so you flip it rather than storing two. Fewer parts to lose, and one thickness per function rather than a choice of them. The KitchenAid slicer attachment on this site’s stand-mixer shelf publishes three separate blades at 3 mm, 4 mm and 6 mm; nothing on this shelf publishes a cut thickness at all.

The lid is the lock, which is the complaint everybody has

“The smart design lets you set the work bowl onto the base, and uses the lid as the locking mechanism. No more struggling to lock the bowl into place.”

What normally happens: the bowl must be twisted onto the base until a tab engages a slot you cannot see, and then the lid must be twisted onto the bowl until a second tab trips the safety interlock. Two blind alignments — and a processor that will not start because one of them is a few degrees out is the commonest complaint about the whole category.

Here the bowl drops on, and tightening the lid clamps everything. One alignment instead of two.

And the Hamilton Beach 70725 at $69.99 leads on exactly the same problem, in its own first bullet: “Stack & Snap technology provides easy assembly and removes the need for difficult twist-locking.”

Two of nine machines putting assembly first is a fair indication of where the frustration lies. The Ninja at $109.99 approaches it from the other side: “Built-in safety mechanisms ensure the processor operates only when properly assembled” — which is the interlock that causes the problem, described as a feature.

Touchpad controls are the other convenience here, and the stated reason is cleaning: “Easy-Clean Touchpad Controls”. A flat panel wipes; a rocker switch collects flour in its hinge. Low, high and pulse matches the shelf standard — the KitchenAid, Ganiza, both Hamilton Beach machines and the Sangcon all have two speeds plus pulse. The Ninja substitutes four Auto-iQ presets, and the HC150B has pulse alone.

Four hundred and fifty watts, which is the shelf’s center

450 W continuous, and four machines here publish exactly that: this, both Hamilton Beach models and the Ganiza.

Below it: Cuisinart 250 W, BLACK+DECKER HC150B 150 W — both small-bowl choppers, and both matched to their bowls.

No wattage at all: the KitchenAid at $54.99 and the Sangcon at $49.99.

And the Ninja publishes 1000 “peak” watts, which is a different unit. A peak figure is the momentary draw at startup or stall; a continuous rating is what the motor sustains. The two do not compare, and the Ninja is the only machine on this shelf using that convention — “1000PW” in the title, “1000-peak-watt” in bullet one.

So on continuous power this is level with every other full-size processor here, at a third to a half of their price.

Eight cups against the alternatives: Ninja 9 · Hamilton Beach 70730 10 · Hamilton Beach 70725 12.

What capacity governs is batch size before you stop and empty — and the usable figure is lower than the printed one, because a processor must not be filled past the blade with anything liquid. A 12-cup bowl holds roughly half that in salsa before it weeps round the center spindle. The 70725 is the only machine on this shelf with a sealed bowl, for precisely that reason.

Per cup this is the best value here: $4.69, against $5.30 (70730), $5.83 (70725) and $12.22 (Ninja). The three small choppers run $9.63 to $15.71 a cup.

Salsa, nut butter and hummus — and what each asks of the machine

The three named uses are well chosen, because they are three different loads.

Salsa is the easy one: soft, wet, and done in pulses. The risk is over-processing into soup, which is what pulse exists for.

Hummus needs the opposite — sustained running to get chickpeas smooth, and oil added gradually. This has no oil hole, where the three small choppers on this shelf all do: the HC150B’s “oil holes”, the Cuisinart’s “pinholes” for “a perfect emulsion”, the KitchenAid’s “drizzle basin”. On an 8-cup bowl you lift the lid and pour, which works but is messier.

Nut butter is the hard one, and it is the real test of a 450 W motor. Nuts go from chopped to paste over several minutes of continuous running, and the motor is loaded the whole time while the mass heats and stiffens. No run-time limit is published here — and only the Sangcon publishes one anywhere on this shelf: “limit each run to 60 seconds”. The Ganiza admits the same constraint without a number: “if the machine stops working, please wait a few minutes for the machine to cool down.”

For nut butter, work in two- or three-minute stints and let the motor rest. At least seven of the thirteen machines on this shelf tell you nothing about how long they may run.

What is not published

No weight. The only machine on this shelf without one, and it matters for a reason that decides whether a processor gets used: a heavy machine lives on the counter, a light one lives in a cupboard and comes out. The ladder: HC150B 544 g · Cuisinart 998 g · KitchenAid 1225 g · Ganiza 2268 g · Sangcon 2495 g · Hamilton Beach 70730 2812 g · Hamilton Beach 70725 2980 g · Ninja 3470 g. The catalog box here is 226 × 221 × 386 mm, which is the same order as the 10-cup Hamilton Beach.

No bowl scraper. The Hamilton Beach 70730 at $52.95 is the only machine on this shelf with one, and it solves the universal processor problem: food climbs the bowl wall and stops being cut. Its scraper works “while the food processor is running or the power is off — no need to remove the lid”. Without one, you stop, unlock, scrape with a spatula, reassemble — which on this machine means undoing the one alignment its first bullet saved you.

No sealed bowl, as above.

No cut thickness for the disc, which no machine on this shelf publishes.

No dough blade, which only the Ninja has.

No BPA statement, where at least six of the thirteen machines here claim BPA-free — two of them specifying “in all food zones”.

No run-time limit and no warranty. Only the Cuisinart (18 months) and the Sangcon (2 years, plus ETL certification) publish either.

No feed chute dimensions, where the Hamilton Beach 70725 makes its “Big Mouth” chute a selling point — “Fit a whole potato or tomato right into the chute” — and the 70730 claims a “large feed chute” that reduces pre-cutting. Chute width is what decides whether you halve a potato first, and this page does not say.

Availability

Read on the day this page was built: $37 at the American Amazon shop.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Prices quoted in this text were read on 2026-10-05. The live price is at the top of the page.

Its two closest in price

Same shelf, nearest cost — where the same money else goes.

The plus side, and the minus

Strengths

  • The cheapest machine on this shelf that can actually slice and shred
  • Four dollars sixty-nine a cup, the best capacity-for-money of any processor here
  • The lid is the lock, which removes the one job everybody finds awkward

Compromises

  • No weight published, the only machine on this shelf without one
  • No bowl scraper, so you stop and open the lid to bring food back to the blade
  • No warranty, no run-time limit, no BPA statement

Specifications

Capacity8 cups
Motor450 W continuous — the shelf standard
Cost per cupAbout $4.69 — the cheapest processor-cup here
Slicing discReversible metal, slice one side and shred the other
S-bladeStainless steel, for chopping and mixing
ControlsTouchpad with low, high and pulse
AssemblyBowl sets onto the base, lid is the locking mechanism
DishwasherAll removable parts
Named usesSalsa, nut butter, hummus, slicing vegetables, shredding cheese
ReferenceFP4200BC
WeightNot published — the only machine here without one
Bowl scraperNone; the Hamilton Beach 70730 has one
Run-time limitNot published
WarrantyNot published
Amazon referenceB09X278W9V
EAN0050875821477

What readers want to know

What makes this a food processor and the cheaper one a chopper?

A feed chute and a flat disc, and that is the division the whole shelf turns on. Bullet four: "REVERSIBLE SLICE/SHRED DISC: The reversible metal disc lets you slice veggies quickly or shred cheese without tiring your forearms." A chopping blade and a slicing disc do different things. An S-blade spins in the bottom of the bowl and cuts whatever comes into its band — the result is chopped, with pieces of varying size, and it cannot make a slice of anything. A disc sits at the top of the bowl and food is pushed onto it down a chute, so every piece meets the blade at the same angle: the result is slices or shreds of uniform thickness. That is the difference between chopped cucumber and sliced cucumber, between crumbled cheese and grated cheese. At least five of the thirteen machines on this shelf have no disc and no chute — the BLACK+DECKER HC150B at $14.44, the Cuisinart at $39.95, the KitchenAid at $54.99, the Ganiza at $55.99 and the Sangcon at $49.99 — and the words "food processor" are in eight of the nine titles. This is the cheapest of the four that can slice, by fifteen dollars over the Hamilton Beach 70730 at $52.95. Worth noting what "reversible" means in practice: it is one disc with two faces, so you flip it rather than storing two — fewer parts to lose, and one cutting thickness per function rather than a choice.

Does the lid-as-lock actually help?

Yes, and two machines on this shelf attack the same problem, which tells you it is real. Bullet one: "The smart design lets you set the work bowl onto the base, and uses the lid as the locking mechanism. No more struggling to lock the bowl into place." What normally happens is that the bowl has to be twisted onto the base until a tab engages a slot you cannot see, and then the lid has to be twisted onto the bowl until a second tab trips the safety interlock. Two blind alignments, and a processor that will not start because one of them is a few degrees out is the commonest complaint about the whole category. Here the bowl simply drops on, and tightening the lid is what clamps everything. One alignment instead of two. The Hamilton Beach 70725 at $69.99 solves the same thing differently, with "Stack & Snap technology provides easy assembly and removes the need for difficult twist-locking" — stated as its first bullet, as here. Two of nine machines leading on assembly is a fair indication of where the frustration lies. And the Ninja at $109.99 approaches it from the safety side instead: "Built-in safety mechanisms ensure the processor operates only when properly assembled" — which is the interlock that causes the problem in the first place, described as a feature.

Is 8 cups and 450 watts enough?

For a household, yes, and the two figures are the shelf’s center of gravity. 450 watts is the standard here: four machines publish exactly that — this, both Hamilton Beach models and the Ganiza. Below it, the Cuisinart at 250 W and the BLACK+DECKER HC150B at 150 W, both small-bowl choppers. The KitchenAid and Sangcon publish no wattage at all. And the Ninja publishes 1000 "peak" watts, which is a different unit — a peak figure is the momentary draw at startup or stall rather than the power sustained, and it is the only machine here using that convention. So on continuous power this is level with every other full-size processor on the shelf. Eight cups against the alternatives: the Hamilton Beach 70730 gives 10, the Ninja 9, the Hamilton Beach 70725 12. What capacity governs is batch size before you have to stop and empty — and the practical limit is lower than the number, because a processor should not be filled past the blade for liquids: a 12-cup bowl holds about half that in salsa before it leaks round the spindle. The 70725 is the only machine here with a sealed bowl for exactly that reason. Per cup this is the best value on the shelf at $4.69, against $5.30, $5.83 and $12.22 for the other three processors.

What this one costs among kitchen appliances

Details checked on October 5, 2026.

The buyer this one serves, among kitchen appliances

A first real food processor, where eight cups and a slicing disc matter more than features

What buyers actually choose

Amazon reports what buyers took in the month before this page was last checked: at least 4,000.

The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.

Sources

Specifications: the manufacturer sheet for kitchen appliances and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

What we look at on these kitchen appliances