Is there a way to stop cut up apple going brown in a lunch box?

[tortoise]

My DS1 loves apples but likes them cut at the moment because of a loose tooth and gap next to it but he wont eat it from his lunch box because it goes brown.
Is there a way to stop them going brown?

lemon juice

def lemon or lime juice..bit sour but theyll get used to it...mind too much acidity though in little'uns

Thanks.I will get some lemon juice.

lemon juice killer for tooth enamel esp with the fructose in apples

oh,thats not good.Maybe i will save the apples for after school and let him choose a different fruit for the lunch box.

There is also a suggestion to add some orange juice to apples etc

Depends on the type of apple to a certain extent - I think the really crispy ones stay white longer than the others.

But you could put some grapes in the lunch box, or a banana?

i froze some grapes btw and they were delish, so not sure how long they would last if you could freeze them before-hand

ds has chopped apple every day and has never complained about them being brown, he usually has Galas.

I soak them in apple or orange juice and put them in a little tub.

Seem to be fine if cut up in the morning and put straight into a little airtight container. Ds1 has a cooler pack lunch box and ds2's lunch goes into the fridge at kindy - don't know if that makes a difference.