Introduction
The KitchenBoss Sous Vide Cooker Machine G321 is an advanced immersion circulator designed to bring professional-level precision cooking to your home kitchen.Utilizing a brushless DC motor for ultra-quiet operation and an accurate thermostat control, this device ensures your food is cooked to perfection every time.Its IPX7 waterproof design and food-grade SUS304 stainless steel construction make it safe, durable, and easy to clean.
Important Safety Information
- Always ensure the water level is between the MIN and MAX marks on the circulator to prevent damage and ensure proper operation.
- Do not immerse the entire unit beyond the maximum water level indicator. While IPX7 waterproof, proper usage is essential.
- Keep out of reach of children.
- Use only with appropriate voltage (120 Volts) and a grounded outlet.
- Do not operate if the power cord or plug is damaged.
- Allow the unit to cool completely before cleaning or storing.
- Ensure the clamp is securely fastened to a stable pot or container before use.
Product Overview
The KitchenBoss G321 Sous Vide Cooker is designed for ease of use and durability. Below are its main components and features.

Overall Design: The KitchenBoss G321 features a sleek, silver design with a robust stainless steel body, ensuring durability and efficient heat transfer.It comes with an adjustable clamp for secure attachment to various cooking vessels.

Color TFT Display: The ultra-clear TFT display provides intuitive control and shows cooking parameters, including temperature, time, and pre-programmed recipes.It features 20 original healthy recipes and 5 customizable slots.

Food-Grade SUS304 Stainless Steel: All parts of the circulator that come into contact with water are constructed from 100% food-safe SUS304 stainless steel, ensuring safety and preventing discoloration over time.

Ultra-Quiet Brushless DC Motor: Equipped with a high-quality brushless DC motor, the G321 operates with minimal noise (as low as 15.5 dB), providing a comfortable cooking environment.
Setup Guide
- Choose a Suitable Container: Select a pot or container large enough to hold the food you plan to cook and allow for proper water circulation. Ensure the container can withstand temperatures up to 194°F (90°C).
- Attach the Sous Vide Cooker: Securely attach the KitchenBoss G321 to the side of your chosen container using the adjustable clamp. Ensure the circulator is stable and upright. The clamp is suitable for containers with a thickness of up to 0.87 inches (22mm).
- Fill with Water: Fill the container with water. The water level must be between the MIN and MAX fill lines indicated on the circulator. Do not exceed the MAX line to prevent water from entering the top electrical components.
- Connect to Power: Plug the power cord into a standard 120 Volt grounded electrical outlet. The display will illuminate, indicating the unit is ready for operation.

Secure Attachment: The adjustable clamp ensures the circulator is firmly attached to your cooking vessel, providing stability during operation.
Operating Instructions
The KitchenBoss G321 offers both pre-programmed recipes and manual settings for precise temperature and time control.
Setting Temperature and Time:
- Power On: Press the ON/OFF button to turn on the device.
- Select Mode: Use the central rotary knob to navigate between "Set Temp" and "Set Time" options.
- Adjust Temperature: Rotate the knob to adjust the desired temperature. The temperature control range is 104°F to 194°F (40°C to 90°C), with an accuracy of 0.1°F/0.1°C.
- Adjust Time: Rotate the knob to set the cooking time. The maximum timing setting is 99 hours and 59 minutes.
- Start Cooking: Once temperature and time are set, press the ON/OFF button again to start the heating process. The circulator will begin heating the water to the set temperature.
Using Pre-programmed Recipes:
The G321 comes with 20 original healthy recipes created by professional chefs and 5 custom recipe slots.
- Access Recipes: From the main screen, use the rotary knob to select the "Recipes" option.
- Browse Recipes: Scroll through the available recipes (e.g., Steak, Lamb Chops, Eggs) using the rotary knob.
- Select Recipe: Press the CONFIRM button (center of the rotary knob) to select a recipe. The device will automatically set the recommended temperature and time.
- Start Cooking: Press the ON/OFF button to begin cooking.
You can also use the PRESET function to schedule your cooking to start at a later time, offering a 24-hour appointment function without needing an app.

Effortless Interface: The intuitive control panel allows for easy setting of temperature, time, and selection of pre-programmed recipes.

Precision Cooking: Achieve desired doneness with precise temperature control, ranging from 104°F to 194°F, and timing up to 99 hours and 59 minutes.
Maintenance and Cleaning
Regular cleaning ensures the longevity and optimal performance of your KitchenBoss Sous Vide Cooker.
- Daily Cleaning: After each use, unplug the unit and allow it to cool. The entire unit is IPX7 certified waterproof, allowing you to rinse the body under running water. Use a soft cloth or sponge with mild dish soap to clean the stainless steel heating coil and circulator shaft.
- Deep Cleaning (Descaling): Over time, mineral deposits from water may accumulate on the heating element. To descale, fill a pot with water and add 1 cup of white vinegar. Attach the circulator and set the temperature to 140°F (60°C) for 30 minutes. This will help dissolve mineral buildup.
- Storage: Ensure the unit is completely dry before storing. Store in a cool, dry place away from direct sunlight.

Easy to Clean: The IPX7 waterproof design allows for easy and thorough cleaning of the entire unit under running water.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on. | Not plugged in; power outlet malfunction; unit damage. | Ensure unit is securely plugged into a working outlet. Check circuit breaker. If problem persists, contact customer support. |
| Water not heating. | Heating element malfunction; insufficient water level. | Check water level is between MIN and MAX lines. Ensure unit is set to start heating. If still not heating, contact customer support. |
| Temperature fluctuates significantly. | Poor water circulation; mineral buildup on heating element. | Ensure food bags do not obstruct water flow. Perform descaling procedure (see Maintenance and Cleaning). |
| Unit is noisy during operation. | Obstruction in impeller; unit not securely clamped. | Unplug and inspect the impeller for any obstructions. Ensure the unit is securely clamped to the pot. |
Specifications
- Brand: KitchenBoss
- Model: G321
- Product Dimensions: 14.96"D x 3.26"W x 2.63"H
- Item Weight: 2.7 Pounds (1.22 kg)
- Material: Stainless Steel (SUS304)
- Color: G321 Sliver
- Wattage: 1100 watts
- Voltage: 120 Volts
- Capacity (Recommended Water Volume): Up to 20 Liters
- Control Method: Touch
- Temperature Control Range: 104°F ~ 194°F (40°C ~ 90°C)
- Temperature Accuracy: 0.1°F / 0.1°C
- Circulation Speed: 20L/min
- Waterproof Rating: IPX7
- UPC: 781454922635
Warranty and Support
KitchenBoss products are manufactured with high-quality materials and undergo rigorous quality control.For warranty information, technical support, or any inquiries regarding your KitchenBoss Sous Vide Cooker, please refer to the contact information provided with your purchase or visit the official KitchenBoss website.
You can also visit the KitchenBoss Store on Amazon for more information and product updates.