The soaring price of sugar has given Tongan food producers a sour feeling.

It has been revealed this week the price of sugar in the kingdom is $50 a kilogram.

Consumer Affairs Tonga has warned that the hike had breached Tonga’s Price Control Act.

The authority said it has found the controversial white sugar has been sold in small 20g plastic bags for a dollar each.

It said it received complaints from concerned customers.

It also warned the public not to purchase the product if the price is more than $1.80 per kilogram for raw sugar or $4.50 a kilogram for white sugar.

The sugar shortage two weeks ago in the country has caused the drastic increase.