When washed incorrectly, laundry items including towels and socks can turn dull.
To help keep them looking pristine, fans of Mrs Hinch have shared how they keep their clothes white.
Posting on the Mrs Hinch Cleaning Tips Facebook page, Sue Tucker posted: “I’m about to go on holiday so I thought I’d use a 60C wash on my whites on a white setting.
“Quite a few things were looking a bit grey. I used washing soda, Oxy powder for whites and a Persil washing pod.
“Even on a 60C wash, nothing came out any whiter. I don’t know what to try next. Any ideas, please? My bras that were bought as white are really grey now. Help.”
The majority of the replies on the post recommended Napisan, a laundry stain remover and whitener.
Fiona Clarke said: “Napisan or Dr Beckmann Glowhite and don’t use pods with white items, use white powder not coloured pods.”
Sharon Stoddart commented: “Soak and wash whites in Napisan, it’s brilliant.” Alison Lister suggested: “Soak in Napisan, does my children’s and it’s brilliant.”
Vicky Robinson wrote: “Soak for a few days in Napisan then do normal a wash. A hot wash, I don’t believe in.”
Susan Gorman posted: “I soaked my bra in a lingerie whitener (from a supermarket) then washed normally with other whites on 40C with added Napisan. Now in my drawer rather than the bin!”
Gabrielle O’Donaughey wrote: “Helps to whiten clothes in as little as 10 minutes, my cleaners love it.”
Napisan can be purchased from supermarkets including Tesco for £4.50 for an 800g box.
Napisan works by releasing active oxygen to remove stains, and items will also be disinfected when soaked in the product.
It can be used in a variety of different ways including adding it into the washing machine or using it as a soak.
Simply mix 35g of Napisan with five litres of water and soak stained laundry for two hours before washing.
It can also be used as a pre-treat before going into the washing machine by simply mixing 30g of the product with a little water to make a paste and then placing this on the stained clothing.
One review of the product on Tesco said: “I add this to my white washes to remove stains and generally brighten. It’s must better than most other stain removers I have tried.
“Fantastic on linen clothes, has removed stains quickly which previously only significant bleaching could tackle.”