Quick Answer

Hand wash the lid and body with mild soap and warm water, dry thoroughly, and store with the lid off or slightly ajar to prevent odors and mold.

Why Proper Cleaning Matters for Your 3-in-1 Tumbler

The 3-in-1 press-fit lid has a narrow drinking spout and a straw slot that can trap residue. If not cleaned regularly, old coffee, tea, or smoothie remnants can cause odors or bacterial growth. The stainless steel body is durable but can retain flavors if left unwashed.

The lid's splash-resistant seal also needs gentle care to maintain its fit. Harsh scrubbing or dishwasher heat can warp the silicone gasket, leading to leaks. A few minutes of hand washing after each use keeps the tumbler fresh and functional.

Common Mistakes to Avoid

Avoid putting the 3-in-1 lid in the dishwasher. High heat and strong detergents can degrade the press-fit seal and cause the lid to warp. Stick to hand washing for all lid components.

Don't store the tumbler with the lid fully closed while it's still damp. Trapped moisture encourages mildew. Always air-dry the lid and body separately before storing.

Step-by-Step Cleaning and Storage Guide

  1. Step 1: Rinse Immediately After Use: As soon as you finish your drink, rinse the tumbler and lid with warm water. This loosens sticky residues like sugar or milk before they dry. Don't let the tumbler sit empty for hours—rinsing now saves scrubbing later.
  2. Step 2: Hand Wash the Lid with Care: Remove the press-fit lid and wash it with a soft sponge and mild dish soap. Pay extra attention to the sipping spout and straw opening. Use a small brush or pipe cleaner to reach inside the spout if needed. Never use abrasive scrubbers on the lid—they can scratch the plastic and damage the seal.
  3. Step 3: Wash the Stainless Steel Body: Fill the tumbler with warm soapy water and use a bottle brush to clean the interior. Rinse thoroughly to remove all soap. The exterior can be wiped with a damp cloth. Avoid soaking the tumbler for long periods—prolonged moisture can affect the vacuum insulation seal.
  4. Step 4: Dry Completely Before Storing: Shake off excess water and place the lid and tumbler upside down on a drying rack. Let them air-dry for at least an hour. Do not reassemble until both parts are fully dry. Storing a damp lid on the tumbler is the most common cause of musty smells.
  5. Step 5: Store with the Lid Off or Ajar: Once dry, store the tumbler with the lid loosely placed on top or slightly open. This allows air circulation and prevents odors from developing inside. If you must store it sealed for travel, double-check that the interior is bone-dry first.

Product Facts

  • 12oz Stainless Steel 3-in-1 Tumbler - Coral: The 12oz ZOKU Stainless Steel 3-in-1 Tumbler features a press-fit lid that lets you sip, drink, or seal with ease. The lid's multiple openings require thorough cleaning to prevent residue buildup in the sipping and straw slots.

    12oz Stainless Steel 3-in-1 Tumbler - Coral

    12oz Stainless Steel 3-in-1 Tumbler - Coral