Introduction
This manual provides essential information for the safe and effective use of your Zojirushi SM-RS50-PA Stainless Steel Mug. Designed for convenience and durability, this 16.9 fl oz (500 ml) mug features a handle type, is dishwasher safe, and incorporates a seamless screw and gasket for easy cleaning and excellent temperature retention. Please read these instructions thoroughly before first use and retain for future reference.
Product Overview
The Zojirushi SM-RS50-PA Stainless Steel Mug is engineered for daily use, offering superior insulation and user-friendly features.
- Vacuum Insulation: Keeps beverages hot or cold for extended periods.
- Seamless Screw and Gasket: Integrated design simplifies cleaning with only two main components to wash.
- Handle Type: Provides comfortable and secure carrying.
- Dishwasher Safe: All components are designed for safe cleaning in a dishwasher.
- Sleek Design: Durable stainless steel construction with a non-stick coated interior.

Figure 1: Zojirushi SM-RS50-PA Stainless Steel Mug (Pink)
Setup
- Unpack: Carefully remove all packaging materials and labels from the mug.
- Initial Cleaning: Before first use, wash the mug body, lid, and all removable parts thoroughly with warm water and mild dish soap. Rinse well and allow to air dry completely. The mug is dishwasher safe for convenience.
- Assemble: Ensure all parts are dry before reassembling the lid onto the mug body.
Operating Instructions
Filling the Mug:
- Twist off the lid.
- Pour your desired beverage into the mug. Do not overfill; leave approximately 1 inch (2.5 cm) of space from the top to prevent spills and allow for lid closure.
- For optimal temperature retention, pre-heat or pre-cool the mug by filling it with hot or cold water for 5-10 minutes before adding your beverage.

Figure 2: Filling the mug and demonstrating temperature retention capabilities.
Closing and Locking the Lid:
- Align the lid with the mug body and twist clockwise until securely tightened.
- To prevent accidental opening, slide the lock lever (if present on your model) to the "locked" position.
Video 1: Demonstration of Zojirushi Stainless Vacuum Mug features, including opening and closing the lid (similar to SM-RS50-PA).
Video 2: Overview of a Zojirushi Stainless Steel Mug (SV-GWE50), demonstrating lid operation and pouring (similar to SM-RS50-PA).
Drinking from the Mug:
- If locked, slide the lock lever to the "unlocked" position.
- Press the button on the lid to release the flip-open cover.
- Drink directly from the spout.

Figure 3: The Zojirushi mug features a convenient handle for easy portability.
Maintenance and Cleaning
Regular cleaning is essential to maintain hygiene and the performance of your Zojirushi mug. The SM-RS50-PA model is designed for easy cleaning.
- Dishwasher Safe: The entire mug, including the body and lid, is dishwasher safe. Place all components on the top rack of your dishwasher.
- Seamless Design: The integrated seamless screw and gasket design means fewer parts to disassemble and clean, simplifying the process.
- Non-Stick Coated Interior: The interior is treated with a non-stick coating to resist stains and odors, making hand washing easier if preferred.
- Thorough Cleaning: For hand washing, use a soft sponge or brush with mild dish soap. Rinse thoroughly with clean water.
- Drying: Ensure all parts are completely dry before reassembling and storing to prevent odors or mildew.

Figure 4: The Zojirushi SM-RS50-PA is fully dishwasher safe for convenient cleaning.

Figure 5: The non-stick coated interior prevents stains and odors, making cleaning effortless.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Beverage does not stay hot/cold. | Lid not properly sealed; mug not pre-heated/cooled; extreme ambient temperature. | Ensure lid is tightly closed. Pre-heat/pre-cool the mug before use. Avoid leaving the mug in direct sunlight or extreme cold. |
| Leakage from the lid. | Lid not tightened; gasket/seal improperly seated or damaged; overfilling. | Tighten the lid securely. Check that the gasket/seal is correctly in place and undamaged. Do not overfill the mug. |
| Unpleasant odor or taste. | Incomplete cleaning; residue from previous beverages. | Clean all parts thoroughly, especially the lid components. Use a mixture of baking soda and warm water for stubborn odors, then rinse well. |
Video 3: Zojirushi Vacuum Mug Heat Retention Test, demonstrating the mug's insulation capabilities.
Specifications
| Feature | Detail |
|---|---|
| Brand | Zojirushi |
| Model Name | SM-RS50-PA |
| Capacity | 0.5 Liters (16.9 fl oz) |
| Color | Pink |
| Material | Stainless Steel |
| Product Dimensions | 2.76"W x 8.66"H |
| Item Weight | 0.3 Kilograms (10.6 ounces) |
| Special Feature | Dishwasher Safe, Handle Type, Seamless Screw & Gasket |
| Recommended Uses | Coffee, Tea, Water |
Safety Precautions
- Do not use the mug in a microwave oven, on a stovetop, or in any other heating device.
- Do not place the mug in a freezer.
- Avoid dropping or subjecting the mug to strong impacts, as this may damage the vacuum insulation.
- When filling with hot beverages, be careful not to scald yourself. Allow hot beverages to cool slightly before drinking directly from the mug.
- Do not drink out of the mug while driving or operating machinery.
- Keep out of reach of children when filled with hot liquids.
- Do not fill with dry ice or carbonated beverages, as pressure buildup may cause the lid to eject forcefully.
- Do not fill with dairy products or baby food, as they may spoil quickly.
- Ensure the lid is securely closed and locked before transporting to prevent spills.
- Do not remove any stickers or labels that contain important safety information.

Figure 6: The mug's interior coating is designed to resist corrosion from sports drinks.
Warranty and Support
For warranty information, product support, or to purchase replacement parts, please visit the official Zojirushi website or contact their customer service. Keep your proof of purchase for any warranty claims.
Zojirushi Website: www.zojirushi.com