Char-Griller Gravity 980 Biscuit Test | 2 Tests! Posted by Rob | Apr 22, 2021 | Smoking / Cooking | Today I did two different biscuit tests on my Char-Griller Gravity 980. I cooked some biscuits at 250F for 1hr, then cooked some biscuits at 350F for 30 mins. Let me know what YOU think of the results! Post Views: 921