Hot? Or cold? You may have to mark the plants after the first samples to avoid surprises. Happy eating
There are many ways to keep track of your crops....but usually memory is not the best one to use. As they ripen, you need to take photos, label them and then do some research to identify them. Do you still have the seed packets or the plant labels?
Jewel and Toni had good suggestions as hot an mild peppers often look very similar. You may have some surprises if cooking with them!
How large is the pepper in the pic? Anaheim can be 3 to 6 inches. This one looks like an Anaheim which is a mild Chili pepper.