nutribullet Blender Combo NBF50500, Dark Gray

One motor base, one pitcher and two cups

The user guide's contents page lists what is in the box: a motor base, a pitcher with an integrated blade, a pitcher lid with a vented lid cap, a tamper, a 32 ounce cup, a 24 ounce handled cup, two to-go lids and an easy-twist extractor blade. The Amazon listing adds a recipe book to that list.

The two vessel types are not interchangeable in how you use them. The pitcher has its blade built in and takes the vented lid; the cups screw onto the separate extractor blade and then invert onto the base. The guide says blending vessels and blades are specific to the exact model, so parts from other nutribullet machines may not be safe on this one.

Hot food: allowed in the pitcher, never in a cup

This is the most important line in the manual and it is repeated several times. Never blend hot liquids in the nutribullet cups or any other sealed vessel, because heated ingredients can pressurise a sealed container when agitated and violently expel hot contents when you open it.

Hot liquids are permitted in the pitcher, but only with the pitcher lid and the vented lid cap attached and locked, because the vented cap is what lets steam and pressure escape. The guide tells you to keep ingredients below their MAX lines, press POWER, start on the LOW setting, and only increase speed once the mixture is integrated and no longer splashing.

Two further restrictions come with that permission. Do not add ingredients through the vent hole while blending hot ingredients, and do not use the PULSE setting with hot ingredients at all. The guide also tells you to keep hands and exposed skin away from the lid opening because steam and spray can burn.

The one-minute rule, even with cold ingredients

The guide asks you never to run the machine for longer than necessary, which it puts at generally under one minute, because friction from prolonged blending heats the contents and builds pressure inside a sealed container. If a sealed cup feels warm, power off and let it cool for fifteen minutes or more.

If you do need longer, the procedure is specific: blend in one-minute intervals, let the motor base shut off completely between them, wait at least one minute, and do not run more than three consecutive intervals. After the third, let the contents settle for two to three minutes.

The machine helps enforce this in one direction only. The guide says speeds shut off automatically after 60 seconds when a nutribullet cup is fitted, while with the pitcher the speeds run until you stop them. The EXTRACT program ends its own cycle automatically on both.

Opening a sealed cup safely, and what not to store in one

The guide gives an unsealing procedure rather than leaving it to instinct. Let the contents settle, release the cup slowly from the motor base, point the cup away from your face and body, and slowly unscrew the extractor blade to release any residual pressure gently.

It also says the extractor blade must not be used as a storage lid, because some foods contain active ingredients or release gases that expand in a sealed container and build pressure. For storing blended contents in a cup, the guide says to use plastic wrap or foil instead and to point the container away from you when opening.

Two related blade rules: never store the extractor blade on the motor base without a cup or pitcher attached, because exposed blades are a laceration hazard, and never run the machine empty or without liquid, which the guide says may damage the blades.

Cleaning: where the listing and the manual differ

Amazon's bullet says hassle-free cleaning means simply placing the pitcher and cups in the dishwasher and rinsing the blade with soap and water. The maker's page likewise says the pitchers and cups are dishwasher-safe. The user guide is more specific than either.

The guide says the nutribullet cups and to-go lids are top-rack dishwasher safe and recommends rinsing and scrubbing them first. The pitcher is described as dishwasher-safe without a rack restriction, with hand washing offered as an alternative. For both, the guide says never to use the sanitize cycle, because heat that high can warp the plastic. The tamper is hand-wash only.

The motor base is wiped with a sponge or cloth dampened in warm soapy water and must never be submerged, and the guide warns against cleaning the actuator system while the unit is plugged in. For stuck-on residue there is a short soap-and-water blending routine described in the guide; follow it from the printed copy rather than improvising.

Power, controls and the one-year warranty

The listing gives 1200 watts at 120 volts with three speeds plus PULSE and EXTRACT, and the maker's page also says 1200 watts. The guide describes LOW for thin batters, gravies, marinades and cooked foods, MEDIUM for creaming soups, dips, ground nuts and sauces, HIGH for liquefying thick mixtures and frozen fruit, and PULSE for controlled chopping.

The motor has a thermal breaker. If it stops working, the guide says to unplug the base and let it cool for at least fifteen minutes; the breaker resets once the unit is unplugged and has cooled. The guide also says not to use a plug adapter or voltage converter, and that doing so voids the warranty.

nutribullet gives a one-year limited warranty from the date of original retail purchase, valid only in the country of purchase, covering repair, exchange or refund at nutribullet's option. It applies to consumer use only and is void in a commercial or institutional setting, extends only to the original purchaser, is not transferable and requires proof of purchase. Shipping and processing fees for returns, replacements or refunds are not covered, and attachments such as canning jars are specifically not recommended and void the warranty.