Those added arms on tripods can bounce too with shutter movement. I don't think your d3300 has a Mirror-Up (MUP) mode which could also help.
Learn to shoot in manual and set your aperture / shutter to what you need (the food's not going to run away so you can take multiple shots) instead of a programmed mode.
I like how not one veggie type is bunched up. well arranged for my non-food photographer eyes.
Thanks for the advice and the compliment.
Will try manual focus.
Used a remote switch but I get your meaning.
The D3300 does have a mirror up load or the ability to connect to a monitor.
I got dragged into photography screaming and shouting because I needed the photos for my cook book.
But am beginning to enjoy the challenge.
I didn't mean "Manual Focus"
but Manual Exposure. On your dial you have a green mode (Full Auto Exposure) P (programmed) A (Aperture) S (Shutter) and M for Manual exposure mode.
In Manual Exposure you set the Aperture and set the Shutter .. and adjust your ISO all to match your lighting.
I think the D3300 is totally missing the MUP feature (I just checked the d3300 manual and don't see it), so you may not know it's not there.
It's when you press the shutter (or remote) and the mirror goes up in the lock position after acquiring focus. This allow the camera to stop shaking due to mirror slap. Then the 2nd release press the camera takes the photo.
I remember this was one reason I HAD to get a d7000 versus the lower models. But I don't recall the specifics.