Given what we have deemed to be the success of our plastic-free July, we thought it would be interesting to see whether it was more or less expensive than an average month. A comment we have received a few times is ‘Won’t it be more expensive?’. I can understand the reasoning as it is something we have taken into consideration – and extra cost is something we are willing to embrace if necessary – as many things seem to be more expensive plastic free – fruit and vegetables in the supermarket, milk in glass bottles, and meat from a butchers, for example.
Luckily, we have already been tracking our expenses each month, which makes it reasonably easy to make a comparison. Over the last year, our average food and grocery shopping bill (this includes non-food items that we buy at the supermarket) has been £346 per month. For the 31 days for which we did Plastic-free July we spent…drum roll…£336, so £10 LESS than our average. This was surprising, even to us, as it felt like we did a LOT of shopping. Our monthly spending does fluctuate a fair bit, so it will be interesting to see how this plays out over the long term, but it is very promising that we didn’t spend a fortune more, especially given it was the first month we had paid the premium for glass bottle milk and bought all our meat plastic free.
I think there is potential for even more savings for anyone who hasn’t dipped their toe into zero waste yet. We had already implemented a number of changes gradually over the past year which have helped reduce costs as well as reduce waste – such as buying fruit and veg from our local market rather than from the supermarket – so if we hadn’t already been doing these things, the decrease would have been even more. For interest, I have gone back through our spending log, and our average monthly spend has actually decreased by £40 per month since we started reducing our waste – a saving of nearly £500 per year! Not all of these saving may have been directly linked to reducing waste, as we were making other changes in parallel, such as simplifying our meals, but even so, it is reassuring that, despite choosing some more expensive options, such as packaging-free dried goods (such as pasta, rice, oats and lentils) we have still been able to reduce our average grocery spend.
I will say though that there was a definite cost in terms of time and convenience. Some of this was one-off investments in time, such as investigating various suitable butchers, and how best to order, which we shouldn’t have to do again now we have that organised. But still, there is no getting away from the fact that going plastic-free or zero waste is not the convenient option, as it is not possible at the moment to buy everything all in one place, and we have had to switch from shopping at one supermarket, to shopping at probably 4 or 5 different places reasonably regularly, plus a few other less frequent shops (less than once every couple of months) at other places. Monthly meal planning, and a linked main monthly shop, has helped to reduce the overall number of shopping trips, but again it takes time to plan, and is not easy convenience.
I think that is why the Waitrose Unpacked trial, which has been recently expanded to 4 other stores (none nearer to us unfortunately, despite my pleading feedback to come to Daventry!) is so exciting. It is real chance to make zero waste convenient enough that it appeals to a much wider audience. Rather than the supermarkets peddling their addictive convenience and blow the environmental consequences, shoppers could be lured into choices that in the end will benefit everyone.
Have you noticed a change in spending after starting to go plastic-free or zero waste? Have you got any tips for reducing time spent and/or increasing convenience?

















