✅ Silicone Baking Mats I Use (Amazon – paid link): https://amzn.to/4n3nJNz<br /><br />Disclosure: Some links above are affiliate links which means I may earn a small commission if you click and buy, at no extra cost to you.<br /><br />Ninja Support: https://support.ninjakitchen.com<br /><br />Ninja Double Oven (DCT451) stuck on “Preheat” or taking too long? This guide shows how to check the door latch, crumb tray, rack placement, foil use, and function choice plus what’s normal preheat time and when to contact support.
