Mercadona, Lidl or Dia: which is the best supermarket strawberry jam?

The quintessential sweet treat at many Spanish breakfasts is put to the test: María Regás, director of the Jam Museum, blind-tastes nine popular brands and delivers her verdict.

https://elpais.com/gastronomia/el-comidista/2026-02-05/mercadona-lidl-o-dia-cual-es-la-mejor-mermelada-de-fresa-de-supermercado.html