Simple Modern product pages for the Trek tumbler say the tumbler is hand wash only and the lid and straw are top rack dishwasher safe. It is stainless steel, so it does not go in the microwave.
This is the reverse of what many people assume. The lid and straw are the parts that handle a dishwasher, and the insulated cup itself is the part Simple Modern asks you to wash by hand. Take it apart before cleaning, so each piece gets properly washed.
| Tumbler body | Hand wash only |
|---|---|
| Lid | Top rack |
| Straw | Top rack |
| Before cleaning | Disassemble the tumbler, lid and straw |
| Microwave | No. It is vacuum insulated stainless steel |
How to wash a Simple Modern tumbler
- Take the lid off and pull out the straw.
- Put the lid and straw on the top rack of the dishwasher.
- Wash the tumbler body by hand with warm soapy water.
- Use a bottle brush to reach the bottom edge and the straw.
- Dry all of the parts fully before putting them back together.
What happens when you get it wrong
- Worn finish. The body is the part Simple Modern says to hand wash, so dishwasher cycles are the likely cause of fading.
- Sparks. Steel in a microwave arcs and can damage both the cup and the oven.
- Lost parts. Small straws and lids fall through a loose rack, so keep them where they cannot drop.
Hand wash the tumbler and use the dishwasher for the lid and straw.
Warm your drink in a ceramic mug, then pour it into the tumbler.
Frequently asked questions
Is a Simple Modern tumbler dishwasher safe?
The lid and straw are top rack safe. Simple Modern product pages say the tumbler body is hand wash only.
Can you put the lid in the dishwasher?
Yes, on the top rack, per Simple Modern product pages.
Can you microwave a Simple Modern tumbler?
No. It is stainless steel, which reflects microwaves and arcs. The steel also stops the drink from heating.
Why hand wash the body?
That is the maker instruction on the product pages. The usual reason is protecting the exterior finish.