May have already been suggested but it would be helpful to clanmates if we could send brew, just like we do coins, food and ore.
You can buy a brew token for every clanmate for 1k jewels a day. But, brew also regens over time, so this idea you are talking about could very easily be exploited to help alts grow quicker.
This is a terrible idea, many people already take advantage of having multiple accs (Alts), this would permit them to simply transfer beers from multiple accs to their main. People are already hitting monsters with Alts and then hitting with main, gathering vast amounts of gems. If you added this feature it would be devastating for those who only use 1 account.