Natural flavour and colour to be used in extrusion process

I think both will fail Indough.. unless you use specific technology like glass encapsulated flavours colo. what kind of extension process are you making pellets snacks? Or cereals ?

Thanks for the info. I’m working on dry pallet food with high protein. The barrel temp is 100-150C - twin screws.

Use spraying machine on the pellet after extrusion

This could work.. using a slurry isn't it? Most red and yellow natural colours have carotenoid that are oil soluble .. so spraying then on after your extrusion will do the trick. Carotenoid from paprika extract is quite common. Gives a bright orange colour

You can use paprika oleoresin..but low dosage else you could get a diesel taste..Ideally deodorizerd paprika oleoreain or natural paprika colour..