Custom 600ml Vacuum Insulated Tumbler with Straw Lid

Frequently Asked Questions

Q: What materials is this tumbler made of and is it safe for hot beverages?
A: The tumbler is made from high-quality 18/8 stainless steel, which is food-grade, BPA-free, and rust-resistant. It features double-wall vacuum insulation to keep your drinks hot or cold without any external condensation. The straw lid is made from durable, BPA-free plastic. This product meets FDA and LFGB safety standards, making it safe for both hot and cold beverages.

Q: How long does the tumbler keep drinks hot or cold?
A: Thanks to the double-wall vacuum insulation, this 600ml tumbler can keep hot drinks hot for up to 6-8 hours and cold drinks cold for up to 12-14 hours, depending on the initial temperature and ambient conditions. The included straw lid helps maintain temperature while providing easy sipping.

Q: Is the straw lid leak-proof? Can I use it for carbonated drinks?
A: The straw lid is designed to be spill-resistant, not fully leak-proof. It is ideal for stationary use in the office, car, or home. For complete leak-proof portability, we recommend using the optional splash-proof lid (sold separately). We do not recommend using this lid for carbonated drinks as pressure may cause leakage. For carbonated beverages, use the standard screw-top lid.

Q: Can I customize the tumbler with my logo or design? What is the minimum order quantity?
A: Yes, we offer full customization including laser engraving, silk screen printing, and custom colors. Our minimum order quantity (MOQ) starts at 1000 pieces for standard custom logo tumblers and 3000 pieces for fully custom designs. We are flexible and can discuss smaller quantities for sample orders. Contact our sales team for a quote.

Q: How should I clean the tumbler and straw lid? Is it dishwasher safe?
A: The stainless steel tumbler is dishwasher safe on the top rack, but hand washing is recommended to preserve the finish and insulation performance. The straw lid should be hand washed only with warm soapy water to prevent warping. The straw itself can be cleaned with a small brush. Avoid using abrasive cleaners that may scratch the surface.

Q: What are the shipping options and typical delivery times?
A: We offer international shipping via DHL, FedEx, or sea freight. For standard orders, the lead time is 30-35 days after order confirmation, plus shipping time (5-10 business days for express, 20-40 days for sea). As a direct manufacturer, we ensure stable and on-time delivery. Shipping costs depend on quantity and destination.

Q: Do you offer a warranty or guarantee? Can I return the tumbler if I am not satisfied?
A: Yes, we stand behind our products. All tumblers come with a 1-year warranty against manufacturing defects, excluding normal wear and tear or misuse. If you receive a defective item, we will replace it free of charge. For custom orders, please inspect samples before mass production. Returns for non-custom items are accepted within 30 days of delivery, subject to a restocking fee.

Usage & Care Instructions

To ensure the best performance and longevity of your vacuum tumbler:

• Before first use, wash the tumbler, lid, and straw with warm soapy water and rinse thoroughly.
• Fill with hot or cold beverages as desired. Avoid overfilling to prevent spillage when closing the lid.
• Screw the lid on tightly to maintain temperature and prevent leaks. Ensure the silicone seal is properly seated.
• For hot beverages, use caution when drinking through the straw, as contents may be very hot.
• Hand wash recommended. Do not use abrasive cleaners or scouring pads that may scratch the finish.
• Do not microwave, freezer, or dishwasher (unless specified dishwasher safe).
• Avoid carbonated beverages inside the closed container to prevent pressure buildup.
• Store with lid off when not in use to allow airflow and prevent odors.

This product is available in the following options:

• Capacity: 350ml, 420ml, 600ml
• Color: White, Chocolate, Green, Red

Custom colors and capacities may be available upon request for bulk orders.