Depending on who you ask you will get different versions of stripping diapers. I however like to go in phases from "Hmm maybe my diapers need a boost" to "Time to bring in gas masks,this baby is a toxic nightmare".
To begin, Always strip with clean diapers. The main problem with diapers usually points to too much detergent buildup so getting that out will be priority #1 :)
If I begin to notice my diapers are just not "cutting the job" I go ahead and give my clean diapers and inserts a soap-less hot water/heavy duty wash. Since I have a HE washer I can't do the "Bubbles test" which is to run the diapers through and see if "Bubbles form"and wash until they no longer do. I give them an extra rinse and hang to dry outside to help sun out any "issues". I do add 1/2 cup of vinegar to the fabric softener tray (since I have an HE washer and can't toss it in during the rinse cycle) This helps break down the soap that is probably causing the build up.or I add in Baking soda if the problem is the stinkies. Both of these will help cut the build up in the diaper and get things fixed from the get go.
I try to add vinegar to my wash once a month just to help cut down on the need to further strip diapers. Sometimes "prevention" is the key to further problems.
If the above didn't work, I move on to phase two ,which is to use a little "boost".
If you have hard water Calgon is a great product that can be used. Please don't mistaken it for the Calgon that "will carry you away" in the beauty section. It is the one found in the laundry aisle. Just add 3 tablespoons to a hot water wash. (no detergent)
Another great product that I've used in the past with Ammonia issues and hard water was the Rockin Green "Funk Rock"product. It was great in combination with the Cloth Diaper Detergent Rockin Green.
An item that works great for stripping that you may already have at home is Dawn.
(original blue)*Remember to start with clean diapers*. Run a hot wash with just your diapers and Dawn Dish Soap add 1 teaspoon for an HE or 1 tablespoon for a regular washer remember don't over do it because a little bit of this stuff goes a long way. I suggest doing two extra rinses to get all the suds out. Dry as usual.
If you've come to the point where using bleach or throwing you cloth diapers away is the only choices left, bleach may be the answer. If you've tried everything else and your diapers still stink, add a little bleach to the hot wash and then you must RINSE like a mad woman. Probably about 2-3 times.
*Note :DON'T add this to wool covers, fleece covers and use extreme caution when using on the actual diapers. This will wear away the elastic!!!So Please check with diaper manufacturer before going this route.
Finally, The main thing to do is rinse rinse and rinse. Because we are using cloth diapers and well dealing with poo we automatically think we need to go overboard with the detergent when in reality all that does is make life more difficult. Hot water and sunning is the trick to keeping your diapers picture perfect and clean. Treat your diapers with love and make sure to upkeep them and they will return the love!