Quality of Dr. Oetker Baking Powder is Declining

The quality of Doctor Oetker baking powders has significantly deteriorated over the past three years. Whether we bake a cake or make pastries, both we and our guests suffer from stomach acidity after consuming them. Should the cost of baking a cake or pastries come at the expense of digestive discomfort? Often buying in bulk to save money, I've resorted to using the remaining baking powder for cleaning to avoid causing stomach issues to anyone. It's a balance between preventing wastage and ensuring no one's stomach gets upset. I've shared the necessary details in the image. This issue remains unresolved from my previous complaint.