Breville Sous Chef 12 Food Processor BFP660 review

A discontinued full-size bowl with three chute sizes

The Breville Sous Chef 12 BFP660 is a discontinued U.S. processor whose full retail code is BFP660SILUSC, in Silver. Breville’s old U.S. page identifies that SKU, marks it discontinued and rates the main bowl at 12 cups. The model code alone is not enough to identify a unit sold outside the U.S.; Breville uses BFP660 for regionally different products, so check the appliance label, voltage and included parts if you are comparing a used or remaining-stock listing. This assessment is for the U.S. SKU and its directly linked U.S. instruction book, not the similarly numbered Kitchen Wizz sold in other markets.

The 12-cup figure is not an all-purpose batch promise. The BFP660 manual specifies 12 cups for dry ingredients and 8½ cups for thick liquids, and it gives lower limits for particular tasks. For example, its guide uses batches of up to six cups for some chopped produce and up to 4½ cups of shelled nuts for nut butter. Those task ceilings are more useful than treating the bowl’s headline number as the amount of every recipe you can process at once.

Three feed options and a practical disc set

The exact package lists a micro-serrated S-Blade, a dial-adjustable slicer, a reversible fine/coarse shredding disc, a dough blade and spindle. The manual describes 24 slicer settings from 0.3 to 8.0 mm. That gives one adjustable slicing tool rather than a separate stack of fixed-thickness discs. The shredding disc is a different tool: flip it for finer or coarser results. A three-part pusher works with the 5-inch-wide large chute, 2¾-inch medium chute and 1½-inch small chute. The smaller channel is useful for slender carrots or cucumbers that might roll or tip in a broad opening; the manual recommends matching the chute to the ingredient rather than forcing food through the largest opening.

The listed U.S. box is simpler than the BFP680 Sous Chef 12 Plus. BFP660 has one 12-cup bowl and no listed nested mini bowl, storage caddy, grid-dicing kit, French-fry disc or whisk. Those absent items are package distinctions, not claims that Breville never offered compatible parts separately. If a second small bowl is important, compare the BFP680 review: its U.S. package explicitly adds a 2½-cup mini bowl and dedicated mini blade. If dicing or fry cutting is essential, look for a package whose exact item list includes that particular tool; neither BFP660 nor BFP680 is a grid-dicing set.

What the manual lets you plan

For bread or pizza dough, Breville directs users to the included dough blade and sets a maximum of five cups (700 g) of flour. It advises working in intervals and processing until a soft, elastic ball forms; for repeated batches, it says to let the base cool for an extended period. The manual separately warns that stiff mixtures such as dough can slow the blade and should not be processed longer than one minute in that situation. This is an operating boundary, not a claim that every ordinary task must stop after exactly a minute or a tested performance result.

The same booklet prohibits hot or boiling liquids and says the bowl should not be filled above its marked maximum. If an overload occurs, it advises unplugging the unit and allowing roughly 20–30 minutes to cool before resuming. The 1,000-watt figure comes from Breville’s product page; the manual’s rating panel separately prints 120 V, 60 Hz and 7.5 A. These manufacturer-listed values are recorded as printed, not converted into a performance estimate. Breville lists a one-year product warranty and a separate ten-year motor warranty; the longer motor term is not whole-unit coverage and should not be assumed to transfer to a used machine.

Counter space, cleanup and buying fit

Breville publishes a 7.5-by-8.5-by-17-inch body (width, depth, height) and a 15.9-pound weight. That is relatively narrow and light beside the BFP680’s 8.5-by-15.5-by-16.5-inch footprint, but BFP660 is the taller one. Measure for the full 17-inch body plus room to place and remove the lid and pusher; the listed height is not working clearance. Its high-impact plastic base is another real difference from the Plus model’s die-cast metal base.

Cleanup takes more hand work than a fully dishwasher-oriented package. The manual allows the attachments to be washed in a dishwasher, but directs the user to handwash the bowl and lid; it does not endorse routine dishwasher treatment for the complete work set. It also advises handling the sharp discs and blades by their hubs and storing them safely. The safety interlock requires the bowl, lid and large pusher to be correctly fitted before the motor runs. A removable tool set can simplify prep, but there are still several pieces to wash and put away.

Consider BFP660 if a single full-size bowl, variable slicing, coarse/fine shredding and a separate dough blade meet your work, and you are comfortable with an earlier discontinued appliance. It is not the right match for a shopper who requires the smaller 2½-cup bowl, included grid dicing, a French-fry disc or routine dishwasher cleaning of every removable part. The current BFP710 is a more recent 12-cup comparison, while BFP680 preserves the same broad-size format but adds a mini bowl, storage case and metal base. Compare both exact-model pages before choosing; none of the three should be selected from capacity alone. See Breville’s U.S. BFP660 page and its BFP660 instruction book for the specific SKU, package and operating instructions.