Joining a public Telegram group carries no risk to your wallet or device by itself. The real risk in crypto groups is social engineering — unsolicited DMs from fake "admins" offering deals after you join. Blockchain Caffè is listed in our directory, but the rule applies everywhere: never respond to DMs from unknown accounts after joining any crypto group. Your phone number is never visible to other members unless you've made it public in your Telegram privacy settings.

No. Telegram never notifies your contacts when you join or leave a group. Other members inside Blockchain Caffè can see your username only if you post — your membership is not visible to anyone outside the group.

Blockchain Caffè is a Telegram group for anyone interested in coffee and education. Members can expect regular discussions on finance and technology, along with blockchain to discover.

We verify every listing is publicly accessible, has a minimum member count, and exclude groups Telegram has marked as harmful. Blockchain Caffè currently has 441 members and is marked as active. If you've joined Blockchain Caffè and noticed something suspicious — a review on this page helps others stay safe.