Vintage Double Wall Insulated Steel Coffee Mug 240ml

Q: What sizes are available for this mug?
A: This vintage style double wall stainless steel coffee mug is available in two capacities: 240ml (8oz) and 100ml (3.4oz). The 240ml size is ideal for a standard coffee serving, while the 100ml size is perfect for espresso or small beverages. Please check the product listing to confirm which size options are currently offered.

Q: Is the mug made from safe, food-grade materials?
A: Yes, the mug is constructed from food-grade 304 stainless steel. Some versions may use 312 stainless steel, both of which are BPA free, non-toxic, and safe for hot and cold beverages. The materials meet standard food contact safety requirements, so you can confidently use it for coffee, tea, water, or other drinks.

Q: How well does the double-wall insulation keep drinks hot or cold?
A: The thickened double-layer stainless steel design provides effective vacuum insulation. For hot beverages, it typically keeps coffee or tea hot for 2-4 hours. For cold drinks, it maintains a cool temperature for 4-6 hours, depending on the initial temperature and external conditions. The mug is designed to prevent heat transfer to the outer surface, so the exterior remains comfortable to hold.

Q: Can I use this mug for both hot and cold beverages? Is it leakproof?
A: Absolutely, the double-wall insulation is effective for both hot and cold drinks. However, please note that this mug comes with an open top (no sealed lid), so it is not leakproof. It is intended for stationary use at the office or home. If you need a travel mug with a leakproof lid, please check other products in our range.

Q: Is the mug dishwasher safe? How should I clean it?
A: While the stainless steel body is durable, hand washing is recommended to preserve the vintage finish and insulation performance. Use mild detergent and a soft sponge, then dry immediately. Avoid abrasive cleaners or scrubbers, as they may scratch the surface. The mug is not designed for microwave use due to the metal construction.

Q: Will the vintage style finish fade or peel over time?
A: The vintage antique style finish is applied using a durable coating process designed to resist fading under normal use. However, like any coated item, it may show wear after prolonged exposure to harsh detergents, extreme temperatures, or rough handling. To maintain the appearance, hand wash and avoid soaking the mug for extended periods.

Q: What is the warranty and return policy for this mug?
A: We offer a standard 30-day return policy for unused, undamaged items. If you receive a defective or damaged mug, please contact us within 48 hours of delivery for a replacement or refund. The manufacturer provides a limited 3-month warranty covering material and workmanship defects. Shipping times vary by location; typical delivery is 7-15 business days for most orders.

• Hand Wash Only: To preserve the vintage finish and insulation performance, hand wash with mild detergent and a soft sponge. Rinse thoroughly and dry immediately. Do not use abrasive cleaners or scrubbers.
• Not Microwave Safe: The metal construction makes this mug unsuitable for microwave use. Avoid heating in microwave ovens.
• Not Leakproof: The mug has an open top and no sealed lid, so it is not leakproof. Suitable for stationary use at the office or home. Do not carry in a bag unless upright.
• Hot Liquid Caution: Always test the temperature of the beverage before drinking. The double-wall insulation reduces exterior heat, but the liquid inside can remain very hot.
• Avoid Extreme Temperatures: Do not expose the mug to extreme heat or cold for prolonged periods, as this may affect the insulation layer.
• Storage: Store in a clean, dry place. Avoid stacking heavy items on top.

Colors: White, Black, Light Grey, SAME SERIES (custom colors available upon request)

Sizes: 240ml (8.12 fl.oz) standard, 100ml (3.4 fl.oz) custom

Customization: We offer custom colors, surface processes, and logo printing. MOQ for custom orders is 500 PCS. Contact us for details.