Ninja SLUSHi Twist Review (FS701BL): What the Second Vessel Buys

Quick answer: The Ninja SLUSHi Twist (model FS701BL, $399.99 on Amazon at the time of writing) is the two-vessel version of Ninja’s frozen drink maker. “Twist” is not a styling flourish — it means the machine holds two separate drinks and can pour them together. If you only ever want one flavour at a time, that second vessel is the entire price premium.

Everything below comes from Ninja’s published specifications and the current Amazon listing. We have not had this machine in a kitchen.

What the Ninja SLUSHi Twist actually is

Ninja describes the FS701BL as “2 SLUSHi machines in 1” — two vessels that can slush two different drinks at once, or twist them together into a combination. That is the whole product thesis. A one-vessel frozen drink machine makes one flavour until you empty it, rinse it and start over. This one does not make you choose.

The mechanism Ninja names is Dual SlushAssist Technology. Per the listing, it “senses ingredients in each vessel and auto-adjusts temperatures,” which is how one button handles two drinks that freeze at different rates. A margarita and a cola do not behave the same way in a chiller, and the pitch is that you should not have to know that.

This is not a blender. Ninja states plainly that no ice is needed — you pour liquid in and the machine freezes it. That distinction matters more than it sounds. Ice is how a blended drink waters itself down as it sits, and Ninja’s copy calls out “no dilution” plus a smoother texture than blending, footnoting that smoothness claim against its own Ninja BP201 blender.

What changed from the original SLUSHi

Ninja does this comparison for you, and the footnotes are more informative than the headlines. Two of the FS701BL’s bullet points carry an explicit asterisk reading “vs Ninja SLUSHi FS301” — the original model in this line. Against that machine, Ninja claims the Twist:

  • Slushes faster. The listing says “faster than the original Ninja SLUSHi with no watered-down flavor,” footnoted to the FS301. Ninja publishes no minutes figure here, so we are not going to invent one.
  • Handles higher-alcohol recipes. The bullet reads “and now higher-alcohol recipes,” again footnoted against the FS301. Alcohol lowers a mixture’s freezing point, which is precisely what makes a boozy slush hard to freeze — so this is an engineering difference, not marketing gloss.

Then there is the obvious change that needs no footnote: the original had one vessel and this has two. “Dual SlushAssist” only means anything because there are two chambers for it to arbitrate between.

Note what Ninja does not put on this listing: no capacity in ounces, no freeze time, no wattage, no dimensions. If any of those decide your purchase, get them from Ninja directly before you buy. They are not on the page we are reading, and we are not going to fill the gap with a guess.

The specs that decide the purchase

Two drinks, or one you actually wanted

This is the fork in the road. If you host, and half the room wants a frozen margarita while the other half wants something a nine-year-old can drink, the two-vessel design solves a problem you genuinely have. If your use case is “a frozen coffee on Saturday mornings,” you are paying $399.99 for a capability you will not use.

Serving count

Ninja states “10+ servings at once,” footnoted as 9-ounce servings. That is a crowd number, not a household-of-two number, and it is consistent with the party framing.

14 temperature settings

The listing specifies 14 Temperature Control Settings for adjusting texture. This is the spec that separates a real slush machine from a novelty: a frappe, a milkshake and a margarita are not the same consistency, and a fixed-temperature machine gets exactly one of them right.

What it will make

Ninja lists sodas, frappes, margaritas and milkshakes. Between 14 temperature settings and two vessels, breadth is the point of the machine.

The “twist” part, specifically

It is worth separating the two things the second vessel gives you, because only one of them is obvious.

The obvious one is parallel service: two flavours ready at the same time, no rinse cycle in between. That alone justifies the name for most buyers.

The less obvious one is what Ninja actually named the machine after. The listing says you can “twist them together for endless combinations” — pouring from both vessels into one glass. Whether that is a feature you will use every weekend or a party trick you demonstrate twice depends entirely on the kind of drinker you are. We would not buy a $399.99 appliance for the combination pour alone, and we would not pretend it is nothing either. It is genuinely the differentiator Ninja built the product around.

What this means practically: two vessels also means two vessels to clean. Ninja does not describe the cleaning process on this listing, and dishwasher-safety is not stated. For a machine that will hold milk and sugar syrup, that is a question worth answering before purchase rather than after. Ask Ninja what comes apart and what goes in a dishwasher.

Who should skip the Ninja SLUSHi Twist

Plenty of people, honestly.

Skip it if you only drink one thing. The second vessel is the price premium. A single-vessel SLUSHi does the same job for one flavour, and Ninja sells one.

Skip it if counter space is tight. A dual-vessel machine is a large appliance, and it is not something you put away between uses without resenting it. Ninja does not publish dimensions on this listing — measure your intended spot and confirm the footprint with Ninja before ordering.

Skip it if you were hoping it replaces a blender. It does not. No ice and no blending means you cannot put frozen fruit and protein powder in it and get a smoothie. Ninja’s comparison to the BP201 is about the texture of frozen drinks, not about doing a blender’s job.

Skip it if you need a verified freeze time before committing. That number is not on the listing. If “how long until my drink is ready” is your deciding factor, get it in writing from Ninja first.

Frequently asked questions

Is the Ninja SLUSHi Twist the same as the Ninja SLUSHi?

No. The Twist (FS701BL) is a two-vessel machine with Dual SlushAssist. The original SLUSHi that Ninja footnotes against, the FS301, is a single-vessel machine. Ninja markets the Twist as “2 SLUSHi machines in 1,” which is a fair description of the gap.

Does the Ninja SLUSHi Twist need ice?

No. Ninja states “no ice needed — just pour, press, and slush.” The machine chills the liquid itself, which is why the listing keeps emphasising no watered-down flavour.

How many drinks does the Ninja SLUSHi Twist make?

Ninja states 10 or more servings at once, footnoted as 9-ounce servings.

Can you make alcoholic drinks in the Ninja SLUSHi Twist?

Yes, and it is one of the specific upgrades Ninja claims. The listing names margaritas directly and says the machine now supports “higher-alcohol recipes,” footnoted against the FS301. Follow Ninja’s own recipe guidance on alcohol limits — there is a physical ceiling on how boozy a mixture can be and still freeze.

Is the Ninja SLUSHi Twist better than a blender for frozen drinks?

Ninja claims a smoother result, footnoting the comparison to its Ninja BP201 blender, on the reasoning that no ice means no dilution. For frozen drinks that logic holds. For anything you would normally blend from solid ingredients, a blender is still the right tool.

How much is the Ninja SLUSHi Twist?

$399.99 on Amazon at the time of writing. This listing’s price moves, so check the current figure before you decide.

Is the Ninja SLUSHi Twist worth it?

It comes down to one question, and it is not a question about the machine. Will you regularly want two different frozen drinks at the same time? If yes, the second vessel is the product and $399.99 buys you the thing that no single-vessel machine can do. If no, you are buying half a machine you will not switch on, and the cheaper single-vessel SLUSHi is the better purchase. Nothing else on the spec sheet changes that calculation.

Can you put the Ninja SLUSHi Twist vessels in the dishwasher?

Ninja does not state this on the Amazon listing, and we are not going to guess about an appliance that will hold milk and syrup. Confirm the cleaning instructions with Ninja before you buy if this matters to you.

The verdict

The Ninja SLUSHi Twist is a narrow product that is very good at being narrow. If you host, if kids and adults in your house want different drinks, or if you have owned a single-vessel slush machine and got tired of the rinse-and-restart cycle between flavours, the two-vessel design is the fix — and Ninja’s faster-freeze and higher-alcohol claims against the FS301 point in the same direction.

If none of that describes you, the honest read is that $399.99 buys a second vessel you will not fill. There is a cheaper single-vessel SLUSHi in the same family, and wanting one flavour at a time is not a compromise. It is most people.

One caveat worth restating, because it is the weak point of this listing: Ninja publishes no capacity, no freeze time and no dimensions on it. Those are ordinary things to want to know about a large counter appliance. Confirm them with Ninja before you buy.

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