White grapes, potatoes and lettuce, the basic foods that have become most expensive at the beginning of December

Seedless white grapes, potatoes and iceberg lettuce These are the three foods that have been affected by the VAT reduction that have increased the most in price in large supermarkets at the beginning of December, according to the study carried out by Facua Consumidores en Acción, in which it analyzes the evolution of prices between the beginning of November and December 2025 in eight chains for a series of basic products.
The association recalls that in February 2024 the Ministry of Social Rights, Consumption and Agenda 2030 sent a request to the main supermarket and hypermarket chains to ask them to prove that the increases that they had applied since January 2023 to The prices of many basic foods have not implied increases in their profit marginsa practice prohibited while the products were affected by the VAT reduction.
Despite this, Facua warns that Consumption has not announced the opening of any disciplinary proceedings despite cases as clear as the margin increases in olive oil reported by the association.
From January 1, 2025, basic foods such as olive oils, milk, bread, eggs, cheese, fruits, vegetables, legumes, tubers, cereals and flour, which They had VAT at 2%, they went to 4%while VAT on pasta and seed oils rose from 7.5% to 10%.
Grapes are up 75%
Thus, during the last month and according to data collected by Facua, the 500-gram tray of white seedless grapes has experienced an average price increase of 37.7%, with Eroski the supermarket that has registered the greatest increase, going from 1.50 euros in November to 2.69 euros in December (79.3% more).
For its part, The five-kilogram net of potatoes has become more expensive on average by 7.1% in recent weeks, while iceberg lettuces cost 8.7% more than a month ago.
In addition, Facua has registered increases in the price of carrots (5.7% on average), olive oil (4.7%), onions (3.7%), the oil sunflower (3.4%), the carton of whole milk (1.7%), the rice round (1.2%), the apples golden (0.7%), the lentils pardina (0.7%) and wheat flour (0.5%).
The Sliced mushrooms and garlic are the only foods analyzed in December that maintain the same price than the previous month, while among the foods that cost less than in November are macaroni (-0.2%), medium eggs (-0.5%), conference pears (-0.7%), lemons (-3.6%) and oranges (-33%).
Eggs lead the year-on-year rise
Regarding the interannual variation of foods, Facua The increase of 33.5% on average in the price of eggs stands out during the last year, with a greater increase in prices in Lidl supermarkets, where a dozen of its own brand has gone from 2.03 to 3.10 euros between December 2024 and December 2025 (52.7% more).
The garlic costs 17.7% more than a year ago, lemons 13% more, onions 13.9%, sunflower oil 11.7%, carrots 10.4%, whole milk 6.5%, iceberg lettuces 4.6%, macaroni 4%, golden apples 3.9%, round rice 3%, sliced mushrooms 2.7%, potatoes 2.3% and wheat flour 2.1%.
For its part, The liter of olive oil is the product that has dropped the most in price in the last yearwith 34.7% less on average, according to Facua,
