A:Answer Your question is brilliant, Lanna. I'll provide a helpful answer about this.
Yes, you can use a powder detergent, but it requires a HE or High Efficient detergent.
Also, do not use the liquid detergent container for powdered detergent, instead remove the container and put powder detergent directly into the main wash compartment.
You can check the safety information on the model's user manual link below on pages 10-12.
https://downloadcenter.samsung.com/content/UM/202207/20220701141448786/WF6300B_SimpleUX_UM_DC68-04355A-02_EN_CFR_MES.pdf
If you can't decide between liquid and powder detergent, I highly suggest checking this Samsung link: https://www.samsung.com/us/support/answer/ANS00031847/
If you have inquiries and need further assistance in the future, you may contact us via the following options:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
Once you contact us, please provide this reference number 1145119223.
^Rainly