Yes, absolutely! While we do recommend cleaning Rocketbook pages every month or so, it's expected that pages designed to plan things out for months and years in advance will be cleaned a bit less often than that.
For most cases, some hot water and a good thorough cleaning with the provided microfiber cloth should take most of it up. Additionally, it's worth noting that any staining that might occur will not affect writing, so you can continue to use that section for years to come.
Please also be sure to consult our best practices for how to keep your Rocketbook Notebook in great condition for years to come.
Should you find this at all debilitating to your writing experience, please reach out to us at hello@getrocketbook.