Harsh sums up how I feel about it as well, maybe even spicy and grainy. I might keep a couple kilos and post the bag as a giveaway just so it gets used up. It will take me a long time to get through it.
Usually plastic is from chlorine/chloramines in the water, or an infection. Since it showed up later I would go with the latter, unless you don't use filtered or treated water.
Chouffe tends to be the least expensive ones in stores. I prefer saison dupont bottles though. Boulevard tank 7 bottles are also nice. But their beer isnt as good as the other two.
I had another sample, and yeah that was my impression as well. It's also better cold, when it gets too warm the apple stands out more. Hints of cider in the aroma and flavor.
Might be a good next try, wonder if the modern one has brewers caramel in it.
http://barclayperkins.blogspot.com/2016/05/lets-brew-1937-greene-king-xx.html?m=1