Sainsbury’s explained that by freezing foods such as eggs, herbs, yoghurt or grated cheese, people will extend their lifespan and could save up to £700 a year.
The supermarket opened Sainsfreeze, located in Boxpark in Shoreditch, London, where it showed customers how to correctly freeze the different food items.
Almost all foods and drinks can be frozen and by doing so, families could save hundreds a year.
Products such as milk or yoghurt go off quickly and according to Sainsbury’s research, 36 percent of customers don’t have a chance to eat their food before it goes mouldy.
In addition, storage expert and owner of self-storage company Pink Storage, Scott Evans, revealed that by keeping the freezer full the appliance uses “less energy to cool the freezer down” meaning people could also save money on energy bills.
To do this, he recommended buying food in bulk and then using the food a little at a time to keep the freezer full.
Scott explained: “Buying food in bulk often leads to savings, all you need to do is check whether the food you are buying is safe to freeze and how long you can freeze it for.”
Another alternative is freezing foods like “eggs, milk, mushrooms, broccoli, cooked pasta, bananas, berries, grapes and a whole lot of foods” to make them last longer. The aim is simply to keep the freezer full to save money on energy bills.
Savings expert at discounts platform Deal.Town, Sam Whillance, added: “Most of the energy your freezer uses goes towards cooling down the air that comes in when you open the freezer door.
“So, when your freezer is full, there is less room for warmer air to come in, and the items that are in there will help to cool down any warmer air that does sneak in.”
Talking about Sainbury’s new initiative, the director of corporate responsibility & sustainability at Sainsbury’s, Ruth Cranston, explained: “When people think about climate change, food waste often gets overlooked.
“Around a third of food produced for human consumption is lost or wasted and it contributes a whopping eight to 10 percent of greenhouse gas emissions globally each year.
“That is why we are launching Sainsfreeze, to help customers try and combat food waste and learn handy hints and top tips along the way.
“Innovative freezing not only allows us to save food we would otherwise have thrown away, but also to buy reduced priced food close to its use-by date, saving even more money on the weekly grocery bill.'”
The director of collaboration and change, WRAP, Catherine David, added: “UK households waste the equivalent of eight meals a week on average – that’s costing the average family nearly £800 per year!
“As well as costing money, food waste is having a big impact on the climate. If it were a country, food waste would have the third largest carbon footprint in the world, behind only the USA and China.
“At a time of rising food prices, tackling food waste at home is one way we can all make a difference and save money.
“We know that our freezer can be our friend when it comes to helping us use more of the food we buy.
“We can use it to press pause on food that we’re not ready to eat yet, right up to the use by date.
“But we also know that not everyone is yet a freezer fan. We found that a third of people admit their freezer is sometimes a total disaster area.”
Foods which can be frozen safely include: cheese, milk, yoghurt, eggs, pineapple, raspberries, grapes, peppers, herbs, courgettes, mincemeat, salmon, chicken, coffee, chickpeas, bread, scones and croissants.