The key to minimising environmental impact is to use them as often as possible until they break.
Is your kitchen bin or recycling overflowing with plastic bags, containers and produce wrapping? Plastic has become so commonplace that it's easy to overlook how much of it you use and to forget that it doesn’t just disappear when it leaves your home.
More than 320 million tonnes of plastic was produced globally in 2015, over 40 per cent of which was single-use. Recycling helps to tackle the problem, but the plastic you put in a recycling bin doesn't always get recycled.
How can you ditch plastic in favour of more sustainable kitchen habits? It could be simpler than you think.
Which bag is best?
Once upon a time, the average person in England got through 140 single-use plastic carrier bags a year. We have slashed this by a staggering 86 per cent, partly due to the plastic bag tax and a heightened awareness of the detrimental effects of plastic on the environment. But major retailers in England still sold 1.75 billion plastic bags between April 2017 and April 2018.
When it comes to choosing a bag, do you know your options?
It takes more than four times as much energy to produce a paper bag as it does a plastic bag. Paper also weighs more than plastic, making transport emissions higher.
The Environment Agency finds that paper bags need to be used at least three times to have lower global warming potential than standard plastic bags used only once. But paper bags do not tend to be reused. However, paper is recycled at a higher rate than plastic, so landfill is less of a problem.
By comparison, a bag for life, made of low-density polyethylene, needs to be used at least four times. While this seems doable, it still adds to plastic pollution if you throw it away. Cotton bags need to be used 131 times, but they last well and cut down on plastic pollution dramatically.
Whatever type of bags you use, the key to minimising environmental impact is to use them as often as possible until they break and then return them to a supermarket bag collection point, which many chains now provide. Lots of these 'bins' also accept plastic wrap from bread, cereal boxes, toilet roll, freezer bags, ring-joiners and lots of other single-use plastic items. Ask in store if you're not sure if your shop has one or what it accepts.
Is plastic ever better?
Some vegetables, such as cucumbers, bananas, peppers and potatoes, and meats such as beef, can last much longer when wrapped in plastic. This is due to the oxygen-free environment or micro-climate that can be created.
So which is worse for the environment – plastic or food waste? We enter the plastic paradox.
According to anti-waste charity Waste & Resources Action Programme (WRAP), increasing the shelf life of produce by just one day would save UK shoppers up to £500 million per year by cutting back on their food waste.
One way to avoid the need for long-life fresh ingredients is to shop for them locally so that you can easily pop back when you want something. “Veg box deliveries and local markets or greengrocers are a way of ditching packaging while supporting local businesses”, says Emma Priestland, plastics campaigner at Friends of the Earth.
Kathryn Kellogg, the founder of Going Zero Waste and author of '101 Ways to Go Zero Waste', recommends shopping for whole foods rather than processed. "Most of the processed foods we buy come in a lot of packaging and fruits and vegetables tend to come with less. Bring your own container to buy meat and cheese from the deli and butcher. If available, you can also grab staples like nuts, grains and legumes from bulk bins”.
Pasta, rice and dried beans and pulses are often sold wrapped in plastic and if they weren’t they could be spoiled by water damage or breakage, creating food waste. Check if there is a plastic-free shop offering refill schemes near to you, then take along reusable containers.
To keep food fresh without plastic at home, Kathryn suggests you store “kale, herbs and asparagus like bouquets in a glass jar half full of water. Submerge your carrots and celery completely in water and they'll stay crisp for weeks! Store greens wrapped in a towel in a mixing bowl with a lid on and they'll stay crunchy. Keep berries in a mason jar with a lid that prevents air or moisture from getting inside so they'll stay fresh all week.”
Many major UK supermarkets have pledged to reduce avoidable unrecyclable plastic packaging while slashing the amount of food waste produced. So in the future we could start seeing better alternatives and new solutions to plastic that increase shelf-life.
Utensils and storage
“When it comes to spoons, spatulas, cutlery and everything else you use to cook and eat, opt for wooden or metal utensils. But don’t go to your kitchen right now and chuck out all your plastic utensils. Keep on using the plastic items you already have, and then when they reach the end of their life, look at replacing them with plastic-free alternatives”, says plastics campaigner Emma Priestland.
If you're taking your own food to work, school or college, you're already on the right track. Purchasing lunches such as sandwiches, soups and meals-to-go from shops involves a lot of single-use plastic. Reusing a box, no matter what it's made from, is key. “A steel lunchbox is perfect for taking your food to work – it won’t be prone to cracks or discolouring in the same way as a plastic one”, says Emma.
For those who can afford them, beeswax wraps are an alternative to clingfilm – you can wipe them down and if the wax starts to come off or you accidentally melt it, you can recoat the wrap with wax yourself. However, the environmental impact of them at scale is not clear.
It's best to freeze leftovers in reusable boxes rather than freezer bags or cling film. But try not to forget it’s in the freezer and label everything clearly so you know what you're defrosting!
If you buy a lot of bottled fizzy water or drinks, consider investing in a water carbonator. It will allow you to carbonate tap water instantly and store it in a glass bottle, rather than buying single-use plastic bottles.
The key is to use all your belongings until they break. When you have to buy something new, weigh up the options and decide what works best for you and the planet.
As hard as it is to live in a zero-waste and plastic-free world, we, as residents of this planet we call home, can only do the best we can.