He's a year old and he's not used to anything else. Something that isn't smoothe will feel foreign to him, whether he likes the taste or not.
Have you tasted the stuff you're giving him? I'm just asking, because my kids HATED jarred baby food. It's so bland, I couldn't blame them. But, if your son is used to things that are bland, introducing things that have more flavor might also seem weird to him.
He's old enough to try picking things up for himself. Put some things in front of him and have some patience. It always amazes me....a little kid will pick up rug fuzz and put it in their mouth, but they can be weird when it comes to introducing new foods. Put some different things in front of him and let him explore. Let him feel things with his fingers. They will inevitably end up in his mouth as part of exploration. He doesn't have to be spoon fed. My kids had little plastic cutlery and I let them have it just to chomp on or get them used to putting it in their own mouths to get used to the feel and the grip on their own. Heck yeah...they can make a mess, but that's why Dollar Store plastic tablecloths were invented, in my opinion. Put them under the high chair and let the kid have at it. No messes on the floor to clean.
Again, just my opinion, but let him explore foods and feeding himself.
I witnessed a meltdown of all meltdowns when a friend invited me and my son out to lunch and she, as a matter of habit, started breaking his food up into mush and that kid FREAKED! He started hitting her and kicking her and throwing his food and yanked her long hair. She excused herself to the bathroom and left us sitting there with him. My son, not knowing what else to do, pushed his chicken nuggets over and offered them and he sat there and ate them like nothing ever happened. He didn't want his food all mashed up and that was the day she started letting have pieces big enough to hold by himself.
These things just take practice, trial and error, and introducing more things.
Let him hold things, lick things, put things in his own mouth.
He'll get the hang of it.
Best wishes.