Looking for a budget-friendly cup of Coffee? You may not find one anytime soon

While many coffee lovers prefer the high-quality arabica beans sold in cafes, Robusta is normally less expensive because the tree is hardier and requires less care, making it easier to produce in large quantities.

Instant Coffee variants in Germany, Europe's largest Coffee market, are selling nearly 20 percent higher than last year, even as input cost inflation has slowed down. US instant coffee-price growth also slowed compared to the roasted version in April.

The shortage of Robusta is unlikely to ease anytime soon. Vietnam - the world's largest Coffee producer collected its smallest harvest in nearly four years as farmers focused on planting more profitable crops to cope with the surge in fertiliser costs.

On thee other hand, drought has hurt the crop in Brazil, while heavy rains have destroyed the same in Indonesia.

“There’s been so much of a demand shift away from higher-priced coffee that even the market isn’t even being satisfied by higher Robusta exports,” said Judith Ganes, who runs a consultancy focused on commodities like coffee in New York.

The switch from Arabica to Robusta has happened due to double-digit inflation in many parts of the world forcing consumers to trade down to cheaper options. Nestle SA and India’s Tata Coffee, have also reported stronger demand for instant coffee in their latest quarterly earnings.