Ateco4512 Compostable and Disposable Cake Decorating Bags, Plastic, Biodegradable Green

Q: Where are they manufactured?

The compostable decorating bags are made in China

Q: Are these big enough and heavy duty enough to pipe choux?

They are definitely sturdy enough for piping heavier pastry such as choux! The 21" bags will most likely be the better size for you. The 12" bags are ideal for smaller baking or decorating projects, comfortably holding approximately 1 to 1.5 Cups filling. Thank you for your question and we hope you have a good experience with our biodegradable piping and decorating bags! Ateco Customer Service

Q: Are these bags home compostable?

I wouldn’t put it in my backyard compost (but also haven’t tried to see how well it breaks down in that environment), but they can go in the city’s clean green bins (commercially compostable) for sure!