I want to know what to do with cucumbers that taste bitter.
Cucumbers Taste Bitter
Certified GKH Gardening Expert
You may want to toss them. If they are large, then they are probably over mature. I would try picking them a little earlier. Some varieties may look white instead of yellow when over mature. Here is an article on when to pick cucumbers: https://www.gardeningknowhow.com/edible/vegetables/cucumber/when-to-pick-a-cucumber-how-to-prevent-yellow-cucumbers.htm
This article may also help: https://www.gardeningknowhow.com/edible/vegetables/cucumber/what-causes-bitter-cucumber.htm