I keep getting those after tastes after cooking with these but it's not so bad... The upsides are it doesn't emit free radicals that would probably weaken your neurons so it's healthier to use and it's more beneficial.
I have been using this product for as long as I can remember. Maybe it's because my skin got used to how it feels so I never felt irritated eight after I used it. But it does take time to dry so my skin would feel a bit sticky at first.