Sensory Perception Challenges
Just as there are varying manifestations of Autism, there are just as many levels of that manifestations. One person could have a very hard time with being touched physically, while another doesn't mind a good squeeze or two.
In terms of taste and food texture, some Autistic kids can't stand certain noodles because the texture seems off or is just a flat-out "no" for their brain. Some people don't eat certain spices because it's too much information for their brain to process.
As for sound, there are certain pitches and volumes that are too strong for an Autistic person's brain to process. While one person can stand to go to the average "Plain White Tees" concert, another person might be content with watching or listening to things on YouTube, where they can control the volume at home and at their own pace.
Certain sights and brightness levels can affect Autistic people as well. If an art piece looks too "busy" or like there's too much going on visually, it doesn't really matter to them how well the piece is painted. You could be one of the Top 10 artists in the world and your art piece would still inevitably overwhelm someone with Autism.
Temperature can also play a part in the manifestation in Autism, masking and coping. Based on personal experiences and documented experiences of other adults on the spectrum, I have found that heat, especially extreme heat, can cause difficulty with coping and masking, as well as general distress and behavioral issues. In short: The heat hurts and people with Autism and other processing disorders like it even less!
Of course, people are (finally) slowly but surely getting the hang of how to have different senses quieted down and levelled out for the Autistic community. There are now art museums and galleries catered specifically for those with sensory processing challenges and spectrum disorders, so they can enjoy the world around them just a little easier.