Thank you for your review. We share your disappointment that you've experienced issue with your Nespresso VertuoNext machine. If you are concerned about potential sensitivity to coffee, we advise you to consult your healthcare provider. All capsules contain dried ground coffee with no other preservatives. Flavor Variations are prepared using a very fine flavoring powder, which is added to the coffee after grinding. The tastes have been recreated using a blend containing natural substances derived from plants. They contain no preservatives or sweeteners. The flavorings are all made from natural ingredients. The flavors that we use for our coffee have been scientifically evaluated to pose “no safety concern” by the European Food Safety Authority (EFSA). We do not use any of the E.U. banned flavoring substances. We can confirm that any references to “nutty,” “milk,”, “sugar”, or “cocoa” notes are components of the aromatic profile which are naturally occurring within the bean. These notes do not suggest their physical presence in the coffee. Purchases made in-store at Nespresso Boutiques can be returned within 30 days of purchase with receipt and must be unused/unopened. Online purchases cannot be returned. If you need any further assistance or troubleshooting support with the machine, please call 800-562-1465. We are available 24 hours a day, seven days a week.