very / too

1a. It is very hot.
1b. It is very hot to touch.
2a. It is too hot.
2b. It is too hot to touch.
Please correct the above.

1b does not really sound right to me. This video is a bit long, but does a good job showing what the difference is between “It is very hot.” , “It is too hot.” , and “It is so hot.”