There's a really good community feature on here called groups. It works like this:
1. Follow a group's account
2. You will start seeing posts on that topic
3. You can post to the group by @-ing it
It's more powerful than hashtag following, as all group posts are actively pushed to all of the group's members. No one misses anything.
Find out more about groups at https://fedi.tips/how-to-use-groups-on-the-fediverse/
If you're interested, try following one of the friendly active groups curated at https://fedi.directory/tag/fediverse-groups/
p.s. I've rewritten the post so that it no longer mentions the tea group, as people were replying to the original post with the tea address included. This was filling the tea group with non-tea posts, as the group shares any post which mentions the group.
Apologies to the tea group for my carelessness and thoughtlessness.
For those interested in following the group, it's @ tea @ a.gup.pe with the spaces removed.
p.p.s. If you appreciate groups, please donate to the service that powers most of them, Guppe:
They spend hundreds of euros a month on hosting to provide the service, and put lots of unpaid work into it.
Guppe is totally independent, it doesn't get any money from Mastodon etc.