The total cost of the food basket may be lower this week, but this does not mean that some essential goods have not increased in price.
This week, between September 10 and 17, DECO PROteste highlights horse mackerel, fresh hake, and beef for boiling as the top three products that saw the most significant price increases over the last seven days.
Data from the association shows that horse mackerel rose from 3.83 euros to 4.46 euros this week, an increase of 0.63 euros, or 16%.
Fresh hake increased by 14% compared to September 10: it rose 1.30 euros, from 9.06 euros to 10.36 euros by September 17.
Lastly, in this top three, beef for boiling became 0.67 euros more expensive, about 6%, rising to 11.85 euros. The previous week, it cost 11.18 euros.
DECO PROteste also notes the price increase for fiber cereals (now 4.45 euros), needle rice (1.59 euros), zucchini (1.99 euros), butter beans (1.33 euros), Frankfurt sausages (1.95 euros), tuna stakes in vegetable oil (1.69 euros), and spiral pasta (1.15 euros).
See the values in the table below:
Increase in food prices for the week of September 10 to 17© DECO PROteste
It should be remembered that this week the essential basket of 63 products costs 240.38 euros, 0.26 euros less than last week.
The food basket price is calculated by DECO PROteste since January 2022 and tracks the evolution of essential food items by analyzing the total cost of the basket weekly on Wednesdays through the online stores of major supermarkets.
The basket includes meat, frozen foods, fruits and vegetables, dairies, groceries, and fish, considering products like turkey, chicken, horse mackerel, hake, onion, potato, carrot, banana, apple, orange, rice, spaghetti, sugar, ham, milk, cheese, butter.
Inflation rate rose again in August
The increase in food prices is attributed to the rise in the inflation rate, which in August grew by 2.8%, 0.2 percentage points more than in July, according to the provisional estimate released at the end of the month by the National Statistics Institute (INE).
The information gathered by the institute, still subject to revision, points to an acceleration in the Consumer Price Index (CPI).
After a 2.64% difference in the index in July compared to the same month last year, the rate rose to 2.78% this month, the INE reports in the statistical summary.
The underlying inflation indicator—excluding unprocessed food and energy products—showed a variation of 2.5% compared to the index value in August last year. In this case, the difference is the same as in July.
“The variation of the index for energy products was -0.2% (-1.1% in July) and the index for unprocessed food products is expected to have accelerated again to 7.0% (6.1% in the previous month),” details the INE.
The overall CPI variation compared to July (month-on-month) was negative, with a monthly difference of -0.2%. The decline was smaller than the one registered from June to July, which was -0.4%.

Inflation rate increased by 2.8% in August, 0.2 percentage points higher than the July variation, according to the provisional estimate released today by the National Statistics Institute (INE).
Lusa | 11:11 – 29/08/2025