To refill, unscrew the cap from the top, fill with salt or pepper, and screw the cap back on tightly.
Yes, these sprinklers can also be used for other fine seasonings such as paprika or chili powder.
While the glass can be dishwasher safe, it is recommended to hand wash to maintain the product's quality.
You can use sea salt, table salt, or any fine-grained salt suitable for seasoning.
It is advisable to clean them after every few uses, especially to avoid flavor mixing between different spices.