Introduction
Thank you for choosing the GROWNSY Bottle Warmer & Double Bottle Warmer. This device is designed to simplify feeding routines by offering multiple functions for warming milk, heating food, defrosting, and sterilizing. Please read this manual thoroughly before use to ensure safe and efficient operation.

Image: The GROWNSY Bottle Warmer highlighting its six versatile functions: Fast warming for cold milk, heating food at 60°C/104°F, fast defrosting frozen breast milk, constant warming milk at 40°C/104°F, constant defrosting frozen breast milk, and sterilizing.
Important Safety Instructions
- Read all instructions before using the appliance.
- Do not immerse the power cord, plug, or the appliance itself in water or other liquids to protect against electrical hazards.
- Close supervision is necessary when any appliance is used by or near children.
- Unplug from outlet when not in use and before cleaning. Allow to cool before putting on or taking off parts.
- Do not operate any appliance with a damaged cord or plug, or after the appliance malfunctions or has been damaged in any manner. Contact customer service for assistance.
- Do not use attachments not recommended by the appliance manufacturer, as this may cause hazards.
- Do not use outdoors.
- Do not let cord hang over edge of table or counter, or touch hot surfaces.
- Do not place on or near a hot gas or electric burner, or in a heated oven.
- Extreme caution must be used when moving an appliance containing hot liquids.
- Always attach plug to appliance first, then plug cord into the wall outlet. To disconnect, turn any control to 'off', then remove plug from wall outlet.
- Do not use appliance for other than intended use.
- Always ensure the water level is appropriate for the selected function.
- Always check the temperature of milk or food before feeding to a baby.
Package Contents
Please check the package contents upon unboxing:
- GROWNSY Bottle Warmer Main Unit
- Adjustable Lid
- Bottle Basket (for lifting bottles)
- Instruction Manual
Product Overview
Familiarize yourself with the components of your GROWNSY Bottle Warmer:
- Control Panel: Features a digital display and buttons for power, mode selection, and temperature/time adjustment.
- Water Tank: The main chamber where water is added for heating and steaming.
- Bottle Slots: Designed to accommodate two bottles simultaneously.
- Adjustable Lid: Helps retain heat and steam, suitable for various bottle sizes.
- Bottle Basket: Facilitates safe placement and removal of bottles and food jars.
Setup
- Unpack: Carefully remove all components from the packaging.
- Clean: Before first use, wipe the main unit with a damp cloth. Wash the adjustable lid and bottle basket with warm soapy water, then rinse thoroughly.
- Placement: Place the bottle warmer on a stable, flat, heat-resistant surface, away from direct sunlight or heat sources.
- Power Connection: Plug the power cord into a suitable electrical outlet. The device will enter standby mode.
Operating Instructions
The GROWNSY Bottle Warmer offers six distinct functions. Always ensure sufficient water is added to the tank before operation.
1. Fast Warming (Milk)
This mode quickly warms milk to a ready-to-feed temperature.
- Place the bottle(s) into the bottle warmer using the basket.
- Add approximately 30ml of water to the water tank.
- Select the 'Fast Warming' mode on the control panel.
- The device will heat the milk within 3-7 minutes.
- Once complete, the device will auto power-off. Carefully remove the bottle(s) and check milk temperature before feeding.

Image: A visual representation of the fast warming process, illustrating how milk is heated within 3-7 minutes to quickly prepare a bottle for a baby.
2. Normal/Constant Warming (Milk)
Maintains milk at a desired temperature for up to 24 hours.
- Place the bottle(s) into the bottle warmer.
- Add water to the tank, ensuring it covers the milk level in the bottle.
- Select the 'Constant Warming' mode.
- Set the desired temperature (e.g., 37-60°C). The device will maintain this temperature for up to 24 hours.
- Always check milk temperature before feeding.

Image: The GROWNSY Bottle Warmer shown maintaining milk at a warm temperature for 24 hours, ensuring it's ready for feeding at any time.
3. Fast Defrosting (Frozen Breast Milk)
Quickly thaws frozen breast milk.
- Place the frozen breast milk bag or bottle into the warmer.
- Add water to the tank, ensuring it covers the frozen milk.
- Select the 'Fast Defrosting' mode.
- The device will rapidly thaw the milk. Monitor the process to prevent overheating.
- Once thawed, proceed with warming or feeding as needed.
4. Constant Defrosting (Frozen Breast Milk)
Gently thaws frozen breast milk over a longer period, preserving nutrients.
- Place the frozen breast milk bag or bottle into the warmer.
- Add water to the tank, ensuring it covers the frozen milk.
- Select the 'Constant Defrosting' mode.
- The device will slowly and safely thaw the milk.
- Once thawed, proceed with warming or feeding as needed.
5. Food Heating (Baby Food)
Heats baby food jars or containers to a suitable temperature.
- Place the baby food jar or container (without lid) into the warmer.
- Add water to the tank, ensuring it reaches the level of the food.
- Select the 'Food Heating' mode.
- The device will heat the food, typically maintaining it warm for up to 6 hours (60-90°C).
- Stir the food and check its temperature before feeding.

Image: The GROWNSY Bottle Warmer shown with various baby food purees, illustrating its capability to keep baby food warm for up to 6 hours.
6. Steaming/Sterilizing
Sterilizes bottles, nipples, and small accessories using steam.
- Place clean bottles, nipples, or small accessories into the warmer using the basket.
- Add approximately 100-150ml of water to the water tank.
- Select the 'Steaming' or 'Sterilize' mode.
- The device will generate steam to sterilize the items.
- Once complete, allow items to cool before handling.
Maintenance and Cleaning
Regular cleaning ensures optimal performance and hygiene.
Daily Cleaning
- Always unplug the device and allow it to cool completely before cleaning.
- Empty any remaining water from the tank.
- Wipe the exterior of the main unit with a damp cloth. Do not immerse the unit in water.
- Wash the adjustable lid and bottle basket with warm soapy water and rinse thoroughly.
- Dry all parts completely before storing or next use.
Descaling
Mineral deposits (limescale) can build up in the water tank over time, affecting performance. Descale regularly, especially in areas with hard water.
- Mix 50ml of white vinegar with 100ml of cold water.
- Pour the solution into the water tank.
- Allow the solution to soak for 30 minutes to 1 hour (do not turn on the device).
- Pour out the solution and rinse the water tank thoroughly with clean water several times to remove any vinegar residue.
- Alternatively, use a commercial descaling solution suitable for baby appliances, following the manufacturer's instructions.
Troubleshooting
If you encounter issues, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Not plugged in; power outlet issue; damaged cord. | Ensure the power cord is securely plugged into a working outlet. Check the power cord for damage. |
| Milk/food not heating. | Insufficient water; incorrect mode selected; limescale buildup. | Add appropriate amount of water. Ensure the correct function is selected. Descale the unit if necessary. |
| Heating takes too long. | Too much water; limescale buildup; initial temperature of milk/food too low. | Use the recommended amount of water. Descale the unit. Note that very cold or frozen items will take longer to heat. |
| Water leaks from the unit. | Overfilled water tank; unit not on a flat surface. | Do not overfill the water tank. Ensure the unit is placed on a stable, flat surface. |
If the problem persists after trying these solutions, please contact GROWNSY customer support.
Specifications
- Model: B0B2RPCV1G
- Functions: 6-in-1 (Fast Warming, Steaming, Food Heating, Normal Warming, Fast Defrosting, Constant Defrosting)
- Material: Food-grade Polypropylene
- Input Voltage: 120V~60Hz (Standard US)
- Power: 200W
- Temperature Range: 37°C - 100°C (98.6°F - 212°F)
Warranty and Support
GROWNSY products come with a standard manufacturer's warranty. For specific warranty details, registration, or technical support, please refer to the warranty card included in your package or visit the official GROWNSY website. You may also contact customer service directly via the contact information provided on the product packaging or website.
Customer Service Email: support@grownsy.com
Official Website: www.grownsy.com