CrateChef Flash Deal – 40% Off Your First Box! Posted by Brandy on March 1, 2017. Subscription Box Coupons & Deals / CrateChef Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification CrateChef has a new coupon code! Through 3/5 use coupon code BISCUIT40 to save 40% off your first box when you sign up !