The cost of making a cup of tea went up significantly as food prices continued to rise at record rates in October, the British Retail Consortium said.
Costs for tea bags, milk and sugar all rose as food price inflation jumped from 10.6% last month to 11.6%, the BRC-NielsenIQ price index found.
The hike in shop prices was due to higher costs for ingredients and energy, as well as worker shortages.
The war in Ukraine has pushed up energy and food prices around the world.
The conflict has disrupted supplies from both Russia and Ukraine, which are major exporters of goods such as sunflower oil, wheat, and fertiliser.
And with oil and gas prices at high levels, businesses are having to pay more to transport produce due to higher fuel costs.
Worker shortages have also contributed to higher wages for some, such as lorry drivers.
