Elsie Hewitt just wanted a nice cup of joe on a cold day … and she ended up burning the s*** out of her mouth because it was so hot!

The model took to Instagram Friday night to rail against coffee joints that sell coffee so hot — people can’t even enjoy it for a while.

EH was so pissed about how bad she burned her mouth … she said it should be illegal to see Java that is basically boiling!

And while it’s not technically against the law … people have won some serious money in the past when they have sued fast food places after they suffered burns from scalding hot coffee.

When we last reported on EH … the model had shared a series of candid Instagram Stories, giving fans a peek at her first New Year’s Eve as a mom after welcoming a baby with Pete Davidson.

Davidson and Hewitt welcomed their first child together in December, later sharing the news on Instagram with a heartfelt post, “My best work yet.”