Tayst Coffee Labor Day Coupon: Get 30% Off + FREE Mug! Posted by Hello Subscription on September 5, 2020. Labor Day Subscription Box Deals / Subscription Box Coupons & Deals / Tayst Coffee Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification Tayst Coffee has a new sale for Labor Day! Get a FREE Tayst Mug + 30% off your first box! Just use this link and the coupon code MUG30 to grab the offer! Get FREE Mug and 30% off at Tayst! Visit Tayst Coffee to get this offer!