When I wash my nappies (I use Ariel Bio) I do the following:
1. 25 min cold rinse
2. 1hr cold rinse
3. 60C intensive wash with super rinse
4. Rinse, rinse and rinse (I do 30C wash cycles as rinses so I get plenty of water in to get detergent out)
I have tried stripping the nappies with a full dose of Ariel bio powder and millions of full wash cycles with no powder as rinses and they still stink when he wees in them

It's really stressing me out as we are going away a couple of times in the next couple of months and I don't want Findlay's nappies making the car stink of ammonia when we are away especially when we go to the Netherlands in May as we'll be away for 4 days with no washing facilities.
Pleeeeeeeeeeeeeeease help me!!! I have heard things about white vinegar and soda crystals but I don't know what to do with them and I don't want to kill my lovely bamboo fitteds or their elastic.
If anyone solves my problem for me I will be forever grateful to you