Just be careful not to overheat the hose...you only need to WARM it a bit. I used to keep a small travel size blow dryer in my tool box just for this purpose. Heat also makes it easier to put hoses onto fittings.
When replacing a hose, you also want to lubricate the end of the fitting and inside of the hose with a little dishwashing detergent--or better yet, K-Y jelly, which despite its personal uses, is actually a water
soluble surgical jelly that's a lot more slippery than dishwashing liquid and will dry out, not leaving the connection permanently greasy. Do NOT use vaseline or any other lubricant.
"If you can't explain it to a six year old, you don't completely understand it yourself."