SourFriend User GuideSafety & warranty
Safety instructions
Important safety instructions — save these instructions.
Read all instructions before using SourFriend. Failure to follow them may cause fire, electric shock, or serious injury.
Safety symbols used in this guide
- DANGER
- Indicates a hazardous situation that will result in death or serious injury if not avoided.
- WARNING
- Indicates a hazardous situation that could result in death or serious injury if not avoided.
- CAUTION
- Indicates a situation that could result in minor or moderate injury, or damage to the product or property.
- NOTE
- Tips and information for correct use.
Who should use SourFriend
- People with reduced physical, sensory, or cognitive abilities, or with little experience, should use this product only under supervision.
- Children under 8 must not use this product without adult supervision.
Power and cable
- Adapter: Use the included adapter. For a replacement, use a compatible USB-C PD adapter rated 36 W or higher. Do not use damaged or incompatible power accessories.
- Cable: Use the supplied USB-C to USB-C cable or an equivalent cable rated for the required power.
- Port: Keep water, starter, dust, and metal particles out of the power port and connector.
- Cable care: Don't pinch or crush the cable. To disconnect, grip the connector, not the cord.
Never touch the cable, adapter, or unit with wet hands.
If an electric shock occurs, disconnect power only if it is safe to do so, and call emergency services.
Installation and storage
- Clearance: Keep at least 10 cm (4 in) between the product and any wall.
- Ventilation: Use and store the product in a cool, well-ventilated place.
- Storage: Unplug the power cable before long-term storage.
Do not use on carpet, bedding, or towels — blocked vents can cause a fire.
Always use on a hard, level surface. Avoid direct sunlight and damp, hot, or humid places such as bathrooms. If the product gets wet or submerged, unplug the adapter immediately.
Pacemakers and implanted medical devices
If you use a pacemaker or other active implanted medical device, keep this product at least 15 cm (6 in) from your body. Electromagnetic interference may cause the device to malfunction, which can be life-threatening. Consult the device maker or your doctor before use.
Fermented food safety
Storage Mode slows fermentation but does not sterilize food or guarantee food safety. If the starter has mold, an unusual color, an off odor, or other signs of spoilage, do not taste it — discard it. When in doubt, throw it out.
Malfunction and fire
If you notice smoke, a burning smell, or unusual noise, unplug the cable and stop using the product. Let it cool, then contact support. Never use near sprays, gas, other flammable materials, or open flame.
Vents
Never operate with the vents blocked. Trapped heat can cause a fire or permanently damage the Peltier module. Never put your hand or objects into a vent during or right after operation.
Handling the device
- Children and pets: Keep children and pets from mouthing or biting the product or cable.
- Don't move it while running: Moving the unit may damage the fan or dislodge the container. Avoid strong vibration or impact.
- Sensors: The lid sensors are precision parts. Wipe them gently with a dry, lint-free cloth. Keep moisture, detergent, and sharp tools away.
- Wireless: Follow local restrictions in hospitals, aircraft, and other controlled areas.
- Environment: For household use only. Operate at 5–35 °C (41–95 °F) and 30–70% relative humidity.
Do not open, repair, or modify the product.
This may cause electric shock, fire, or damage. Damage caused by unauthorized repair or modification is not covered by the warranty.
Food and container
- Use the container: Never place food directly on the internal base (the cooling/heating plate).
- No hot contents: Do not put hot food into the unit, or heat the product with another appliance such as a microwave.
- Condensation: Temperature changes can form condensation inside. Wipe it dry with a soft cloth after use.
- Cleaning: Never spray alcohol, benzene, or other chemicals on the product.