As fresh as it gets.
The area between Ban Singkhon (see seperate tip) and the Phetkasem Highway leading back to PKK is a large pineapple producing area, indeed it seems to produce many things. On the way back from Ban Singkhon, my Thai friend and I stopped at a roadside stall in the middle of a pineapple plantation, and had the freshest, sweetest pineapple I have ever eaten. Well, it should have been fresh as it came from the field across the road. No fear of food miles here, food yards more like. Basically, the days crop was awaiting transport to market although the young lady pictured was quite happy to pick one out and cut it up for us. This is fruit as it should be.
I saw a number of similar places all over the area, so just pick one and ask, it will cost you literally pennies and is a great experience.