The effects of high commodity and energy costs were felt by South Africa's RCL Foods as it dropped interim dividend plans after its half-year earnings slumped 22.4% and dented margins despite price hikes to offset the costs.
Another retailer, AVI, which also sells clothes, managed to clinch a marginal rise in half-year earnings due to price increases but sales volumes suffered in some categories as a consequence.
The food producers said further price hikes were expected in their second half, with the costs to run diesel generators to deal with the rolling power cuts exacerbating input cost pressures.
"We need that input cost relief as soon as possible," RCL's Chief Financial Officer Rob Field told Reuters.
He saw little relief in sight for better commodity pricing in the short-term.
Last month, biggest food producer Tiger Brands said while it expected a significant reduction in inflation in its basket in the second half, prices were expected to rise in low double digits.
The further price increases are expected to continue to mute consumer demand, the producers said, with AVI Chief Executive Simon Crutchley telling investors that the main focus would be on protecting margins.
Many consumers have turned to cheaper private-label products and alternative brands as they grapple with once-in-a-generation levels of inflation, high interest rates and transport costs.
Volumes of RCL's value-tiered products were significantly up in the period and the producer plans to bring more to the market, Field told Reuters.
Both companies said they were considering increasing investments in back-up power to deal with the energy crisis.
Consumer goods producers globally have lifted prices to cope with surging costs for almost all raw materials, energy and packaging after Russia's invasion of Ukraine compounded pandemic-related supply chain logjams.