Pickled cukes

Question

Some of my pickling cubes are yellow towards bottom and I was wondering if they are good for pickling

Answer 1

Yellowing cucumbers can mean that they are over ripe.
Some yellowing on cucumbers is quite common and should not effect your crop.

https://www.gardeningknowhow.com/edible/vegetables/cucumber/when-to-pick-a-cucumber-how-to-prevent-yellow-cucumbers.htm