Concerns over tea shortages are brewing in the U.K. But how serious is the threat to supply?

The ongoing Houthi attacks in the Red Sea are causing concerns in Britain over potential tea shortages.

Concerns over tea shortages are brewing in the U.K. But how serious is the threat to supply?
A sign posted in the U.K. supermarket chain, Sainsbury's, warned customers about interruptions to their supply of black tea.

The ongoing Houthi attacks in the Red Sea are causing concerns in Britain over potential tea shortages.