Marta Budzynska visits local Tesco shops around Belfast on a regular basis and fills her trolley up with food that is destined for landfill.
She may look like any other shopper in the supermarket, but the difference is Marta is picking all this food up for free and when she arrives home, she will give it all away.
If she doesn't, it will contribute to the food waste pile in Northern Ireland that accounts for up to 25% of the content of our non-recycling bins.
"I didn't realise how much food is going to the bin each day, it's terrifying to be honest," the 33-year-old told Belfast Live.
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Her dedication has gained her the rank of 'food waste hero' on the food-sharing app, Olio. The app encourages its users around the world to post their own unwanted food and other household items for redistribution in their communities.
Globally its users have shared 35 million portions of food, the equivalent of saving 101 million car miles and 5.1 billion litres of water.
Those who volunteer to collect food from local shops, like Marta, are trained on safe collection, storage, and distribution of food.
The mum-of-one living in East Belfast first joined the app in February as a way to reduce her own food costs. After a week, she underwent training and was out volunteering in her local community.
In the space of a month, Marta has done approximately 25 food collections and given away over 300 items.
She said: "The app is growing really fast at the moment. When I joined a month ago, in the 1.6 mile radius of my area there were 2,100 people more or less.
"Now, I can see there are 2,400. So in a month in this area, around 300 new members have joined. I'm hoping that more people and more businesses will join up, so together we can fight to reduce the amount of food waste at the end of the day."
The latest statistics reveal that UK households waste on average £700 per year by throwing food away.
As well as helping to reduce this statistic by using apps such as Olio, Marta emphasised that using it is a great way to get to meet more people.
Marta said: "I was locked-up working at home for the past two years because of coronavirus, so I'm so happy that Olio gave me such a confidence to go again and meet people. I'm so happy to do it.
"Within the past month, I probably met around 40 to 50 new people. Every day I check to see the new food and who added it, and I'm requesting to meet people, and I'm collecting food myself."
For those who are interested in cutting down their food costs, while reducing the amount of products they waste, Marta said the Olio app is very easy to use. She even added that checking it to see which deals you spot can even be addictive.
"The app is very straightforward to use, it's similar to Gumtree. There are listings people can post, items they are giving away for free," she said.
"There is also a category for non-food items people aren't using anymore, like household items and clothes. I think it's brilliant - one person's rubbish is a treasure for someone else.
"I have taken a few toys for my son, and have given away a few items as well. It's really a great way to share and avoid waste."
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