We appreciate your feedback and recommendation, Kennedy. To avoid the stain during daily use, please 1) Always use on low to medium heat and avoid the open flame climb up to the wall of the pots/pans. 2) Do not use metal utensil or utensil with hard edges. 3) If it is a slight stain, boil white vinegar and water in a 1:2 ratio over low heat for 10 minutes, or apply baking soda paste to the stained area, let it stand and then wipe it to prevent the pigment from solidifying. 4) If the outer wall is stained with oil and carbon black, it can be soaked in warm water with neutral detergent and then wiped with a soft cloth. Do not use hard objects such as steel wool balls to scrape, as this may scratch the outer wall coating or the stainless-steel material, causing a more serious staining in the future.

We are sorry the set did not meet your expectations, Jamie. Please know it can be returned for a full refund with the Member's Mark 100% Satisfaction Guarantee. You can contact Member Support at (888) 301-0332 if you need assistance.

We are sorry to hear about your experience. To restore the performance of the non-stick surface, we recommend a deep cleaning method. This involves soaking the cookware overnight in hot, soapy water and thoroughly washing the surface the next morning. Here are a few other tips to help maintain the nonstick performance. 1) Always use on low to medium heat. 2) Always cool down to room temperature before washing. 3) Avoid sudden temperature change (Thermal Shock) on the cookwares and lids. 4) Keep the open fire just touch the bottom of the pots and avoid open fire climb onto the wall. Please know all Member's Mark items come with a 100% Satisfaction Guarantee and can be exchanged or returned anytime.

We apologize for any inconvenience caused. Thank you for your following the instructions. We have more tips for you to keep the shining colors and superior nonstick performance. 1) Keep the cookware inside and outside completely clean and dry before cooking. 2) Never use hard objects on the nonstick surface. 3) Place a piece of paper towel or cookware protector between each piece when storing. 4) Be cautious when placing the pans on and off any location. 5) It is crucial to prevent open flames from reaching the walls of the cookware. However, A deep cleaning of the non-stick surface can help restore performance. This may include soaking overnight in hot, soapy water and then thoroughly washing the surface the next morning. As a reminder, all Member's Mark items come with a 100% Satisfaction Guarantee and can be exchanged or returned for a full refund anytime.

We are sorry for your experience, PD. To restore the non-stick performance, we recommend soaking the cookware overnight in hot, soapy water and thoroughly washing the surface the next morning. Here are some other tips to help with the performance: 1) Use it on low to medium heat consistently. 2) Ensure it cools to room temperature before washing. 3) Prevent sudden temperature changes (Thermal Shock) on the cookware and lids. 4) Be careful when moving the pots, pans and lids.

We're sorry for this experience with the set, Miss. Please know you can exchange or return it for a full refund as part of the Member's Mark 100% Satisfaction Guarantee. We do have a few tips to help maintain your set: Use cookware protectors when stacking pieces. Refrain from using metal utensils or hard objects on the surface of the cookware.