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  1. Home
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  3. Olivia Howes
Olivia Howes - Senior researcher & writer at Which?

Olivia Howes

Senior researcher & writer

Olivia is an investigative journalist covering sustainability and retail issues. She's been at Which? for 15 years.

80 articles
  1. 2026

    1. 21 Oct
      White piggy bank on a bright yellow plate, surrounded by a fork and knife on a wooden table.

      Whihc? food price inflation tracker

      Supermarkets
    2. 13 Oct

      Best tech and appliance shops 2026

      Best and worst shops
    3. 01 Oct
      A young woman in a teal sweater examines a carton in a brightly lit grocery store aisle filled with various dairy products.

      Decoding food labels: sustainability, welfare and food safety

      Food and drink
    4. 23 Sep
      Various loyalty cards including Tesco Clubcard, myWaitrose, and Iceland Bonus Card, alongside a phone displaying offers.

      Loyalty schemes compared

      Supermarkets
    5. 16 Sep
      A bouquet of vibrant tulips, greenery, and eucalyptus, wrapped in brown paper with a red interior, resting on a wooden table.

      How to buy sustainable flowers

      Shopping sustainably
    6. 16 Sep
      A person wearing gloves holds a piece of salmon above a display of various fish fillets.

      How to buy sustainable fish

      Shopping sustainably
    7. 16 Sep
      An assortment of chocolate bars in various colors, including dark, milk, and white, scattered with nuts and broken pieces.

      How to buy more sustainable chocolate

      Shopping sustainably
    8. 14 Sep

      Should we be worried about microplastics?

      Shopping sustainably
    9. 22 Jul
      A person stirs food in a frying pan on a gas stovetop, steam rising, with a bottle of oil and glassware nearby.

      Do gas hobs cause harmful indoor air pollution?

      Hobs
    10. 17 Jul

      Food price inflation on the rise: the everyday items going up in price

      Shopping, food & drink
    11. 02 Jul
      A young man points towards furniture while holding hands with a young woman in a well-lit furniture store.

      How to buy sustainable furniture

      Shopping sustainably
    12. 02 Jul
      A group of five friends cheerfully toasting with wine glasses on a sunny outdoor patio, string lights in the background.

      How to buy more sustainable wine

      Food and drink
    13. 01 Jul
      A close-up of a variety of palm fruits in vibrant shades of orange, red, and yellow, some with brownish skin.

      How to buy sustainable palm oil

      Shopping sustainably
    14. 01 Jul
      A roll of cream-colored toilet paper with a few sheets partially unrolled, resting on a smooth, reflective surface.

      How to buy more sustainable toilet paper

      Toilet roll
    15. 01 Jul
      Two women in colorful jackets hike on a rocky path through a scenic landscape of hills, shrubs, and autumn foliage.

      PFAS/PFCs: avoiding the forever chemicals in waterproof clothing

      Shopping sustainably
    16. 09 Jun
      Various glasses of milk, including almond and coconut, next to oats and nuts, on a rustic wooden surface.

      Plant milks: what's best for your health and the environment?

      Food and drink
    17. 26 May
      A person holds a smartphone, focusing on a blue denim shirt laid flat on a surface, with blurred background details.

      How to sell second hand online

      Shopping sustainably
    18. 26 May
      Young man with glasses and curly hair holds a smartphone and credit card, sitting at a desk with a laptop and headphones on.

      How to buy second hand online

      Shopping sustainably
    19. 26 May

      Food waste: what can and can't go in the recycling

      Shopping, food & drink
    20. 14 May

      Which? Awards 2026: winners revealed

      Shopping, food & drink