You can use a fork, but they usually do more damage to the salmon, which may mar your presentation.
Because the salmon continues to cook off the heat, it’s okay if you remove when it’s slightly under cooked. If you wait until the center is a slightly translucent pink and the fish gives way easily with the fork, it should be perfectly done after it sits.
You can purchase an instant-read thermometer at most home goods and cooking supply stores.
To ensure even cooking, place a weighted object, like a dish or bowl, on top of the salmon as it cooks. [12] X Expert Source Vanna TranExperienced Cook Expert Interview. 15 March 2019.