Just wondering if there is a way to see if the parts are contaminated without actually spraying finish on them and watch it fisheye?

I have a kitchen of doors to refinish and if I don't have to clean them extensively thinking there is contamination that would really streamline the process.

Kitchen doors are covered with cooking oils and airborne contaminants. They need to be extremely well cleaned for anything to stick to them.

This is a pretty unused kitchen. Was going to do a DNA wipedown, light scuff and white vinyl primer.

But that doesn't answer my question. And normal grease cleanup isn't necessarily going to take down years of pledge.

I like using naphtha
When I refinish,I scuff sand then clean with naphtha/acetone
Usually a 70/30 ratio
If you're using a solvent based coating I strongly suggest to use a vinyl primer/sealer

The general recommendation for older kitchens is TSP followed by denatured alcohol. Then use BIN primer.

You could also use a product like Simple Green instead of the TSP. You need to get rid of the grease with a degreaser. Alcohol isn't a degreaser.

I use Kurd kutter.I don’t think there is a way to know,just assume to cover yer ass

Spray booth coating, , spray, view for contamination, let dry, peel off, move forward accordingly.

Jim b, Kurd Cutter? You must source that from Wisconsin.

Sorry krud kutter

A good way to check for contamination on your kitchen cabinet doors before spraying the finish is to perform a quick "tack cloth test." Take a tack cloth (a sticky cloth designed to pick up dust and contaminants) and wipe it gently over the surface. If it picks up any residue or contaminants, you'll see it on the tack cloth. This can give you an indication of whether further cleaning or preparation is needed before applying the finish.