What the maker puts in writing
- “Stainless Steel Design: the propeller and the entire part of the water into all the sus304 stainless steel blade, strong and durable, to avoid the use of any plastic bottom shell or propeller for a long time to heat and produce harmful substances!”
- “Ultra-silent Design: the wave wheel uses stainless steel double-sided inclined 45-degree angle spiral design with stainless steel sleeve diamond-shaped water inlet design, to avoid the spread of sound to the greatest extent”
- “Brushless DC Motor: G300/G310 uses the same quality brushless DC motor of high-end drones, 2900r/m uniform rotation, super power, more durable!”
- “Thermostatic Control System: …continuous monitoring of temperature and control of temperature stability… Temperature range 104°F-194°F (40°C-90°C)”
- “Easy to Clean and Waterproof: It has been certified IPX7 waterproof and can be cleaned by putting the entire body in water, allowing you to deep clean every crevice of oil stains.”
- “Super Water Flow: The sous vide adopts 16L/min water flow design… So you can put more ingredients in the same pot at the same time”
- “Laser-welding-technology: The sous vide uses point-to-point welding technology to weld the head and body of the stainless steel sleeve, ensuring that each joint is perfectly welded.”
- “Present Box Design” · From the name: “Ultra-quiet”, “1100 Watts”
- Reference A01G300S11U · Catalog: 1633 g (57.6 oz), 381 × 71 × 71 mm (15 × 2.80 × 2.80 in)
Five KitchenBoss units, two pumps, and a sixty-four-dollar spread
At least five of the eighteen items on this shelf are KitchenBoss, and they publish the same heater and the same thermal envelope in identical words.
1100 W · 104–194 °F (40–90 °C) · SUS304 stainless · IPX7 · laser welding · a brushless DC motor
All five. Every one.
And they split into exactly two pump specifications.
3800 r/min, 20 L/min, a “3D spiral structure” — the G330 at $169.99, the G320PS at $159.99, the G322PT at $129.99
2900 r/min, 16 L/min — the G310PS at $112.52, and this at $105.99
So $64 separates the cheapest from the most expensive, and what it buys is a faster pump, a color screen and cosmetics.
What the five do not share:
WiFi — four have it; this one does not
The app’s name — three say “KitchenBoss”; the G330 at $169.99 says “Download and connect to the “VeSync” APP”
A TFT screen with 25 chef recipes and 4 custom modes — four have it; this one does not
A Red Dot award — 2021 for the G320PS, 2023 for the G330
A mute mode — only the G310PS at $112.52
A published bath limit — only the G322PT at $129.99, at 50 L
Cosmetics — carbon fiber on the G322PT, magnetic knobs on the G320PS, a gift box on this one
The sharpest pair in the family is the G320PS at $159.99 and the G322PT at $129.99. Same pump, same range, same materials, same recipes — $30 apart — and the dearer one’s distinguishing claims are “magnetic knobs” and an “elegantly molded case”.
And the pair that matters for this page is this one and the G310PS at $112.52. The same pump, the same heater, the same range — $6.53 apart — and the G310PS adds WiFi and a mute mode.
Which makes the case for this unit a narrow one, and it is the case Greater Goods at $89.99 puts in its product title: “No App or WiFi Needed”. A connected circulator whose maker changes its app, retires its cloud or loses your login has fewer functions than it had. This one has a control panel and a stainless body, and nothing that can be withdrawn.
The G330 is the cautionary example. Its WiFi bullet names a different app from its three siblings’ — which is the kind of thing that happens to connected appliances and does not happen to dials.
One hundred and four degrees, which is the highest floor on this shelf
104–194 °F is 40–90 °C, and it is the family figure for all five KitchenBoss units.
The shelf, on range:
32–197 °F (0–92 °C) — the Anova Nano at $68.28
41–212 °F (5–100 °C) — the Monoprice at $44.99
68–203 °F (20–95 °C) — Greater Goods at $89.99
77–210 °F (25–99 °C) — the Inkbird at $95.99
104–194 °F (40–90 °C) — this, and its four siblings
Not published — the Anova 2.0 at $117.99, the Anova 3.0 at $169.99, the Anova Pro at $271, the Breville at $149.95
The floor is the only one on this shelf that genuinely excludes something.
A circulator cannot cool water, so a floor below room temperature is unreachable by definition — which makes the Anova Nano’s 32 °F (the freezing point) and the Monoprice’s 41 °F decorative numbers.
104 °F is above room temperature, and it rules out chocolate work in the high 80s and low 90s. Every other circulator on this shelf can reach it; none of the five KitchenBoss units can.
What it does not rule out is any ordinary sous vide cooking. Fish runs 104 to 130 °F, beef 129 to 140, pork 135 to 145, chicken 145 to 155, eggs 145 to 167, tough cuts 155 to 185, root vegetables 183 to 185. The whole technique lives inside this range.
The ceiling at 194 °F is the lowest published here — nothing in sous vide needs more, and what it costs you is using a circulator as a general water bath for blanching or holding stock near a boil, which the Monoprice’s 212 °F and the Inkbird’s 210 °F allow.
And the accuracy figure its four siblings publish is missing from this page. “Setting accuracy can be up to 0.1℉/0.1℃” appears on the G330, the G322PT, the G320PS and the G310PS, and not here — which is an omission rather than a difference, since bullet four describes the same “high-precision control chip”.
For what it is worth, that figure is a display resolution rather than a justness claim. Only two items on this shelf let you correct the reading: Greater Goods at $89.99 (“built-in calibration… against a trusted thermometer”) and the Inkbird at $95.99 (“adjustable from -10F to +10F”). No KitchenBoss here has one.
“The sous vide adopts 16L/min water flow design, which increases the internal circulation speed of water and ensures the stability of temperature in each place. So you can put more ingredients in the same pot at the same time, and you don’t have to worry about uneven heating of the food at all.”
The shelf, on flow:
20 L/min — the KitchenBoss G330 at $169.99, the G320PS at $159.99, the G322PT at $129.99
16 L/min — this, and the G310PS at $112.52
8.5 L/min (2.25 gal/min) — the Monoprice at $44.99
8 L/min — the Anova Precision Cooker 2.0 at $117.99
Nothing — the other six circulators, including the Anova Pro at $271 with its hundred-liter claim
So this unit publishes double the Anova 2.0’s figure for twelve dollars less.
What flow actually buys. It is how fast the whole bath turns over. 16 L/min in a 12-liter bath is a full turnover every 45 seconds; 8 L/min is every 90.
And that is what decides whether the bath is one temperature or several — because a heater makes a hot plume, and a thermostat reading one point in a stratified bath is reading one point.
Which is why the bullet’s conclusion is the honest one: more flow means more food in the same pot. A single steak in two liters of water does not need 20 L/min. Six bags in twelve liters does.
But the limit is not the pump, and no page on this shelf says so.
A bag resting on the bottom of the container has no water under it. Its underside is heated by conduction through plastic rather than by the bath, and no amount of flow reaches it.
The fix is a rack, and the only item on this shelf that supplies one is the container kit at $54.99 — a 304 stainless rack whose stated job is “keeping the food bags from floating” and putting “some space between the bottom of the container and the food bags”, because “this elevation allows more circulation of the hot water.”
A rack and a lid will do more for bath uniformity than the difference between 8 and 20 liters a minute.
And the maximum bath volume is not published here. Only one KitchenBoss on this shelf publishes one — the G322PT at $129.99, at 50 liters, on the faster 20 L/min pump. Greater Goods at $89.99 and the Inkbird at $95.99 claim 15 L on 1100 and 1000 W. The Anova Pro at $271 claims 100 L “when in a covered container”, which is the parenthesis doing all the work: 1200 W into 100 liters is about 0.17 °C a minute at best.
Stainless everywhere the water goes, and the argument for it
“the propeller and the entire part of the water into all the sus304 stainless steel blade, strong and durable, to avoid the use of any plastic bottom shell or propeller for a long time to heat and produce harmful substances!”
The claim about harmful substances is a sales argument rather than a finding.
Food-grade plastics rated for 90 to 100 °C are ordinary and unremarkable. A kettle, a coffee maker and a dishwasher interior all run hotter than any sous vide bath — and the hottest this machine goes is 194 °F, which is 90 °C. A plastic impeller at 60 °C, where most sous vide cooking happens, is not a chemical event.
Where stainless genuinely wins is cleaning, scale and the long run. A stainless shroud can be scrubbed, descaled and put through a dishwasher. Mineral scale on a heating element is the normal end of a circulator’s life, and a bath that has had bags in it for hours has fat in it.
The materials across this shelf:
SUS304 for the propeller and all wetted parts — all five KitchenBoss units
Stainless — the Anova Pro at $271
A removable stainless skirt — the Anova 3.0 at $169.99
A removable stainless housing — Greater Goods at $89.99
“Super durable plastic”, stated — the Anova Nano at $68.28
Not stated at all — the Anova 2.0 at $117.99, the Breville at $149.95, the Inkbird at $95.99, the Monoprice at $44.99
So at least five of the eighteen items here are explicit about stainless in the water, and all five are KitchenBoss units.
The laser welding claim is the companion to it, and it is a real one. “point-to-point welding technology to weld the head and body of the stainless steel sleeve, ensuring that each joint is perfectly welded.”
A seam between a stainless sleeve and a head is where water gets into an IPX7 device — and a continuous weld is the difference between a joint and a gasket. All five KitchenBoss units make the claim; nothing else on this shelf does.
And IPX7 is what the stainless is for. “It has been certified IPX7 waterproof and can be cleaned by putting the entire body in water, allowing you to deep clean every crevice of oil stains.”
Six items on this shelf publish IPX7: all five KitchenBoss units and the Anova Pro at $271. The Anova 2.0 at $117.99 offers “water resistant for when accidents happen”, which is not a rating. Seven publish nothing — including Greater Goods at $89.99, the Inkbird at $95.99, the Monoprice at $44.99, the Breville at $149.95, the Anova Nano at $68.28 and the Anova 3.0 at $169.99.
IPX7 means immersible to a meter for thirty minutes. On a device that spends its working life half-submerged in a hot bath, that is a working specification rather than a luxury.
The alternative answer, which four items here take, is a removable housing that goes in a dishwasher while the electronics stay dry. Greater Goods, the Anova 3.0, the G322PT and the G320PS have one; this unit does not. Its answer is that the whole thing goes in the sink.
“the wave wheel uses stainless steel double-sided inclined 45-degree angle spiral design with stainless steel sleeve diamond-shaped water inlet design, to avoid the spread of sound to the greatest extent” · “the same quality brushless DC motor of high-end drones, 2900r/m uniform rotation”
The mechanism is described in more detail than anywhere else on this shelf and no decibel figure is given.
The family’s variations on the same theme: the G320PS at $159.99 — an impeller “angled at 135 degrees” with “an oval hole in the sleeve” · the G322PT at $129.99 — “The optimized impeller structure greatly reduces running sound, supporting safe unattended cooking and overnight temperature holding” · the G310PS at $112.52 — a mute mode activated by holding the time button three seconds, which silences the beeper rather than the motor.
One item on this shelf gives a number. The Inkbird at $95.99: “it operates quietly at less than 40dB, letting you cook overnight or during family time without disturbance.”
Which is the right framing, and the reason it matters. Sous vide’s best cooks are its longest: brisket for 24 to 36 hours, short ribs for 48, tough cuts for 72. Those run overnight in whatever room the kitchen is, and the pump is the thing you hear.
A brushless DC motor is quieter than a brushed one and lasts longer, because there are no carbon brushes to wear. Six items here claim one — these five and Greater Goods at $89.99 — and no Anova or Breville mentions its motor at all.
The drone comparison is marketing. The 2900 r/min figure is not — and it is the number that distinguishes this unit from its three 3800 r/min siblings, along with the flow rate it produces.
What is not published
No timer. Three items on this shelf publish a range: 1 minute to 99 hours on Greater Goods at $89.99 with an alert and an overtime counter, up to 99 hours on the Inkbird at $95.99, and up to 99 hours 59 minutes on the KitchenBoss G330 at $169.99. The long cooks are the reason to own a circulator, and this page does not say whether it can time one.
No maximum bath volume, as above.
No accuracy figure, as above — the one specification its four siblings publish and this page omits.
No calibration. Two items on this shelf allow it, and neither is a KitchenBoss. Why it is the honest precision feature: ± 0.1 ° is stability, how steadily the machine holds a reading; calibration is justness, whether the reading is right. A probe that reads 1.5 °C high holds 1.5 °C high all day and the display never flickers.
No minimum water depth, which no item on this shelf publishes — the Anova 3.0 at $169.99 refers to “the minimum water depth requirements” without giving one, and the G322PT at $129.99 says “low minimum water depth” without a number. This body is 381 mm overall.
No noise figure, as above.
No weight on the body as distinct from the box. 1633 g in the catalog, which it shares exactly with the G330 at $169.99 — a figure two units apart in the same family sharing to the gram, which is what you would expect of one casting in two finishes.
No warranty. One item on this shelf publishes one: Greater Goods at $89.99, “5-year coverage” with a “St. Louis-based support team”. Thirteen publish nothing, this included — and bullet three’s “more durable!” and bullet one’s “strong and durable” have no term behind them.
No bag sealing. Not at least one of the eighteen items on this shelf is or includes a vacuum sealer, and the technique needs the food sealed and the air out. A bag with air in it floats, and the part above the water is not cooking. The Inkbird at $95.99 is the only page here to offer an alternative — “a sealed bag or glass jar” — and the container kit at $54.99 is the only one that addresses flotation.
No cord length, which no item on this shelf publishes.
Availability
Read on the day this page was built: $105 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.
