(Bloomberg) -- South African Reserve Bank Governor Lesetja Kganyago used the launch of new banknotes and coins commemorating former President Nelson Mandela to warn of the perils of inflation.

“When inflation walks through the door, public trust in the currency jumps out the window and banknotes and coins become worthless pieces of paper and metal,” Kganyago said on Friday at Freedom Park, a monument outside the capital, Pretoria, honoring national heroes. “Imagine having to cart your cash in a wheelbarrow to buy a loaf of bread.”

The central bank’s Monetary Policy Committee cut its benchmark rate last July and in March as inflation slowed, but will probably hold it at 6.5 percent next week, according to a Bloomberg survey. South African policy makers have warned over the past few months that price risks are lurking.

The annual inflation rate was 4.4 percent in May, well below the 6 percent upper end of the central bank’s target band. The central bank says it prefers price-growth expectations at the 4.5 percent midpoint of the range. The rand had its worst month in more than two years in June and with oil prices having climbed this year, that adds upside risks to inflation.

The new notes and coins are being introduced to commemorate the life of Mandela, the nation’s first black president, who would have turned 100 on July 18.

To contact the reporter on this story: Rene Vollgraaff in Johannesburg at rvollgraaff@bloomberg.net

To contact the editors responsible for this story: Craig Stirling at cstirling1@bloomberg.net, Ana Monteiro, Gordon Bell

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