So, even though ASDA are an evil corporation who double wrap their cucumbers at least their complaints department emailed me back quickly. Here's what they have to say for themselves...
Thank you for your email about the packaging on our cucumbers.
I'm sorry that you were disappointed that the cucumber you bought was double wrapped. As you are aware of our recycling and zero waste policy I can understand your disappointment.
As you have read our commitment to reducing waste you will have seen how much we try to do to help the environment. What we also have to think about is ensuring that our products arrive with our customers in the freshest state possible. This is why we choose to use both a shrink wrap and a cellophane packaging on our cucumbers. I have however passed your email on to the relevant team and asked them to look into ways of reducing this packaging. I'm sure if they can find an effective way of doing this they will as soon as possible.
Thank you again for getting in touch. If there is anything else I can help you with, please let me know.
Which is pretty much the sort of answer I was expecting. Funny how our home grown cucumbers keep for weeks without 1 layer of plastic, never mind 2! Tut, tut, I shake my head at you ASDA and will not be (letting my mum be!) buying your cucumbers in the future.