The Number the Product Page Skips
Cosori sells the TwinFry on a lab claim: it uses "up to 95% less oil compared to traditional deep frying". That is about oil. Nowhere on the page is there a comparison to running your oven, which is the appliance most people are actually deciding against.
TL;DR: 1750W total, not per basket. About 11 cents a session at the September 2026 US average of 18.44 cents per kWh, against roughly 30 cents for an oven that has to preheat first. That is 19 cents a meal, or near 49 dollars a year at five dinners a week. Buy it for speed and the second basket, not the savings.
So I did the arithmetic myself. It is not complicated, and the answer is more interesting than either the marketing or the sceptics suggest.
What 1750 Watts Costs You
The TwinFry is rated at 1750W. Twenty minutes at full draw is 0.58 kWh. The US residential average sat at 18.44 cents per kWh in September 2026, up about 6 percent on the year, so that session costs roughly 11 cents.
| What you run | Rated draw | Time including preheat | Cost at 18.44c/kWh |
|---|---|---|---|
| TwinFry, one basket | 1750W | 20 min, no preheat | ~11c |
| TwinFry, both baskets | 1750W | 20 min, no preheat | ~11c |
| Electric oven | ~2400W | 15 min preheat + 25 min | ~30c |
Look at rows one and two. They are identical, and that is the part worth understanding. The 1750W rating belongs to the appliance, not to each drawer. Cooking chicken in one basket and potatoes in the other costs exactly what cooking the chicken alone costs. If you own a dual-basket model and you routinely use one side, you are leaving the only real energy advantage on the table.
Where My Own Numbers Are Soft
I would rather flag this than let you find it later. Both figures above assume the heating element runs continuously, and neither appliance does that. Air fryers and ovens both cycle: they pull hard until the chamber hits temperature, then coast, then pull again. Actual consumption lands somewhere below the rated maths for both.
Does that break the comparison? No, because the error runs in the same direction for both appliances. The oven still has to heat a much bigger cavity, and it still has to do it before your food goes anywhere near it. The gap survives. The absolute numbers are the ones I would not carve into stone.
The other soft spot is your electricity price. The 18.44 cent average hides an enormous spread across states. If you are paying well above it, every figure here scales up with your rate, and the case for the smaller appliance gets stronger.
There is a third factor nobody puts on a spec sheet, and in summer it matters more than the pennies. An oven dumps heat into the room for forty minutes. A closed air fryer dumps far less, and if your kitchen is air conditioned you are paying twice for that oven heat: once to make it, again to remove it. I cannot give you a clean number for that, because it depends on your climate, your insulation and how hard your unit has to work. But it runs in the same direction as everything else here, and it is the reason a lot of people quietly stop using the oven between June and September without ever thinking about cost.
Worth saying plainly: none of this is an argument for buying an appliance you would not otherwise want. It is an argument for using the one on your counter more deliberately once it is there.
Three Years to Break Even
Here is the part that annoys me about how these machines get sold. Nineteen cents a meal, five meals a week, gets you to about 49 dollars a year. The TwinFry lists at 159.99, marked down from 179.99. That is roughly three years and three months before the energy saving covers the purchase, and only if you would genuinely have fired up the oven every one of those times.
You would not have. Some of those meals would have been a pan on the hob, which costs less than either. Some would have been toast.
So no, the running cost is not why you buy this. Buy it because a 4.5-quart basket reaches temperature in a fraction of the time an oven needs, and because two of them let you finish the protein and the vegetables together instead of holding one warm while the other cooks. That second point is a weeknight problem solved, and it has nothing to do with your bill.
What It Actually Is
A 9-quart box that splits into two 4.5-quart drawers, 1750W, 95 to 465 degrees, six functions, 17.2 pounds, two-year warranty. It is 19 inches wide, which is the specification people forget until it is on the counter and the wall cabinet will not close.
If you want the timings rather than the costs, the air fryer cook times chart covers the temperatures and durations for the food most people put in these things, including how dual baskets change the arithmetic when the two sides finish at different moments.
And if you take one thing from the numbers above, make it this: use both baskets. It is free.