Seanus: Poland prefers not to use preservatives.
The lines of people buying crap meat in the supermarkets seems to contradict that observation :)
Here in England there are weekly Farmers Markets, where they claim the food is fresh and mostly organically grown.
In Poland I have noticed there are many more, and not just 'once a week' markets where fresh produce can be bought.
One of the differences I see is the price; in Poland the freshly produced markets are priced quite cheaply compared to the supermarkets, whilst in England the prices paid at the Farmers Markets are similar in price or in many cases more expensive than at the supermarkets.
There is also a great variety at the Polish Markets, and one can usually taste the produce before buying it. The meat and other produce usually tastes much better from the market than supermarket.
When in Warsaw, I love buying the fresh produce from markets such as Plac Szembeka which is Praga Południe; it's a bit of a trek from my flat in Wilanow but having friends just round the corner makes it a good excuse to pay them a visit!